Glossary

Maritime glossary, terms beginning with A (page 7)

All maritime glossary terms that begin with the letter A, drawn from every subject section. 3739 entries.

Showing 250 of 3739 terms (page 7 of 15).

Alblasserdam X35. Yacht and Superyacht Industry: Town in South Holland, Netherlands, home to Oceanco's build hall.
Albuterol X36. Shipboard Medical, Telemedicine and Seafarer Health: US English name for salbutamol metered-dose inhaler used for asthma and bronchospasm.
Albwardy Damen X113. Drydock and Ship Repair Yards: Joint venture ship repair operation in Sharjah, UAE, combining Albwardy Marine Engineering and Damen Shiprepair & Conversion expertise.
Albwardy Marine Engineering X113. Drydock and Ship Repair Yards: UAE ship repair company based in Sharjah operating floating docks for offshore support vessels and small commercial tonnage.
Alcap X47. Marine Fuel Quality and ISO 8217: Alfa Laval self-monitoring separator system that adjusts discharge intervals based on water transducer signal at the clean oil outlet.
Alcatel Lucent Submarine Networks X122. Submarine Cable Laying, Repair Vessels and Operators: Former name of ASN until the 2016 Nokia acquisition rebranding, still appearing on many legacy system contracts including TAT-14 and SEA-ME-WE 4.
Alcatel Submarine Networks (ASN) X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: French submarine cable manufacturer and installer headquartered in Nozay, supplying systems including 2Africa, MAREA, and Dunant.
Alcatel-Lucent OmniPCX X15. Ports, Terminals and Stevedoring: legacy port radio/telephony backbone used in several terminals.
Alcohol X12. Maritime Casualties and Investigation: Recurring causal factor in groundings and collisions, regulated under STCW Code Section A-VIII/1 blood-alcohol limit of 0.05 percent.
Alcohol Bonded List X120. Marine Catering, Provisions and Ship Chandlers: Master's declaration of spirits, wine, and beer held under customs seal, sealed inbound and broken only at sea.
Alcohol limit X21. STCW Certificates, Crewing and Seafarer Welfare: STCW Regulation VIII/1 maximum 0.05 percent blood alcohol content or 0.25 mg/l in breath for watchkeepers.
Alcohol-to-Jet (ATJ) X34. Decarbonization, Alternative Fuels and Carbon Pricing: Synthetic fuel pathway producing hydrocarbons from alcohols; relevant as a feedstock route for marine drop-in fuels.
Alcoholic Beverages X75. IMDG Code, Classes, Packing and Segregation: UN 3065, Class 3 flammable liquid with concessions for retail packagings above stated alcohol content.
Alcohols Category X135. Chemical Tanker Operators and IBC Code Cargoes: IBC Code grouping covering methanol, ethanol, isopropanol and n-butanol, generally shipped under Category Y or Z with zinc silicate or stainless segregation from acids.
Aldis lamp X3. Ship Handling, Seamanship and Deck Vocabulary: Hand-held signal lamp for Morse signaling between ships.
Aldol X75. IMDG Code, Classes, Packing and Segregation: UN 2839, Class 6.1 toxic liquid Packing Group II.
ALE Heavy Lift X104. Project Cargo Forwarders and Heavy Transport: UK-based heavy lift and transport contractor acquired by Mammoet in 2020.
ALE Heavylift X167. Major Salvage Companies, Wreck Removals, and Equipment: UK-based heavy transport and lift specialist acquired by Mammoet in January 2019, historically used for wreck section lifts and oversize salvage cargo.
Aleksandra Maersk X111. Methanol, Ammonia and Alternative Marine Fuels: 16,200 TEU methanol dual-fuel container ship in the A.P. Moller-Maersk A-class series built by Hyundai Heavy Industries for delivery from 2025.
Aleksey Chirikov X52. Polar Code, Arctic and Antarctic Shipping: Arc6 icebreaking supply vessel built in 2013 to an Aker Arctic design for Sakhalin offshore service.
Aleksey Maryshev X133. Polar Research Vessels and Polar Code Regimes: Russian Arctic supply vessel of the Murmansk Shipping Company class, used historically for Spitsbergen logistics.
Alert State X31. Helicopter Operations on Ships: Pre-arrival readiness condition declared on the helideck before helicopter inbound.
Alerting Post X80. Maritime Search and Rescue Coordination: A facility receiving distress alerts and forwarding them to the responsible RCC.
Aleutian Islands X97. Polar Expedition Cruise and IAATO Operations: Volcanic island chain extending from Alaska, an expedition cruise destination noted for seabird colonies and Russian-era heritage sites.
Alex Haley, USCGC (WMEC-39) X130. National Coast Guards and Cutter Fleets: Medium endurance cutter, ex-Navy salvage ship USS Edenton, commissioned by USCG 1999, homeported Kodiak, Alaska.
Alexander L. Kielland X14. Offshore Oil and Gas Marine Operations: Norwegian flotel that capsized 1980 in Ekofisk; 123 fatalities; brace fatigue failure.
Alexander von Humboldt X128. Sail Training Ships and Tall Ship Associations: German barque built 1906 as Lightship Reserve Sonderburg, converted 1986 to three masted barque with green sails, 62.5 m length, retired from sail training 2011 and replaced by A. von Humboldt II.
Alexandra Maersk X111. Methanol, Ammonia and Alternative Marine Fuels: 16,200 TEU methanol dual-fuel container ship in the Maersk A-class series built by Hyundai Heavy Industries from 2025.
Alexandria Arab Academy for Science Technology and Maritime Transport X121. Maritime Education, Academies and Universities: AASTMT in Alexandria, Egypt, founded 1972 as an Arab League specialized agency, with the College of Maritime Transport and Technology as its flagship.
Alexandrium tamarense X18. Ballast Water, Biofouling and Antifouling: Toxic dinoflagellate cyst commonly transported in ballast tank sediment, causing paralytic shellfish poisoning.
Alfa Flag F5. The Reference Layer: Glossary, Units, Signals and Information Sources: Letter A of the International Code of Signals, meaning "I have a diver down, keep well clear at slow speed."
Alfa Laval X47. Marine Fuel Quality and ISO 8217: Swedish manufacturer of marine centrifugal separators including the MAB, MAPX, MMPX, MOPX, S, and P-Flex ranges.
Alfa Laval Aalborg X63. Marine Auxiliary Machinery and Pumps: Boiler and combustion business unit of Alfa Laval headquartered in Aalborg, Denmark.
Alfa Laval Ammonia FuelPac X140. Ammonia as Marine Fuel and Hydrogen Shipping: Modular fuel-supply system supplying buffer tank, conditioning, and double-walled piping for ME-LGIA engines.
Alfa Laval AQUA Blue X63. Marine Auxiliary Machinery and Pumps: Low-temperature plate evaporator with optimized titanium plates for higher distillate output.
Alfa Laval Aquamar X63. Marine Auxiliary Machinery and Pumps: Vacuum-type fresh water generator from Alfa Laval used as a simplified plate evaporator.
Alfa Laval Galley Separator X120. Marine Catering, Provisions and Ship Chandlers: Centrifugal grease and waste separator used in larger galley wastewater pretreatment lines.
Alfa Laval JWP X63. Marine Auxiliary Machinery and Pumps: Jacket Water Plate fresh water generator series using engine jacket water as the heat source.
Alfa Laval JWP-16-C X63. Marine Auxiliary Machinery and Pumps: Plate-type fresh water generator producing roughly 16 m3/day from jacket water.
Alfa Laval JWP-26-C X63. Marine Auxiliary Machinery and Pumps: Mid-size plate-type single-stage evaporator from Alfa Laval.
Alfa Laval JWP-36-C X63. Marine Auxiliary Machinery and Pumps: Larger jacket water plate evaporator suited to VLCCs and large bulkers.
Alfa Laval MAB X19. Engine Room Watchkeeping and UMS Operations: Manual sludge discharge purifier series for fuel and lube oil cleaning on older tonnage.
Alfa Laval MAPX X63. Marine Auxiliary Machinery and Pumps: Hydraulically operated self-cleaning centrifugal separator for fuel oil and lube oil duty.
Alfa Laval MFPX X63. Marine Auxiliary Machinery and Pumps: Modular high-speed separator for marine fuel and lube oil applications.
Alfa Laval MIB X63. Marine Auxiliary Machinery and Pumps: Small manual purifier originally produced for diesel engine lube oil cleaning.
Alfa Laval Mini-City X63. Marine Auxiliary Machinery and Pumps: Compact plate fresh water generator for small vessels and offshore units.
Alfa Laval MMPX X63. Marine Auxiliary Machinery and Pumps: Compact self-cleaning centrifugal separator for lube oil duty on medium engines.
Alfa Laval MOPX X19. Engine Room Watchkeeping and UMS Operations: Self cleaning paring disc purifier widely fitted for HFO and lube oil treatment.
Alfa Laval P-Flex X63. Marine Auxiliary Machinery and Pumps: Range of disc-stack separators designed for variable HFO, MGO, and biofuel feeds without gravity disc changes.
Alfa Laval P605 X63. Marine Auxiliary Machinery and Pumps: P-Series high-speed disc-stack centrifugal separator for marine fuel and lube oil.
Alfa Laval P615 X63. Marine Auxiliary Machinery and Pumps: Larger P-Series fuel and lube oil separator with EPC 60 control system.
Alfa Laval PureBallast B2. Marine Engineering: UV-based ballast water treatment system.
Alfa Laval PureBilge X19. Engine Room Watchkeeping and UMS Operations: Centrifugal oily water separator certified to MEPC.107(49) 15 ppm.
Alfa Laval PureDry X63. Marine Auxiliary Machinery and Pumps: Waste oil treatment unit that converts sludge from separators into recoverable fuel and dry solids.
Alfa Laval PureNH3 X140. Ammonia as Marine Fuel and Hydrogen Shipping: Selective catalytic reduction package handling N2O and unburned ammonia slip in marine exhaust.
Alfa Laval PureNOx X63. Marine Auxiliary Machinery and Pumps: Water cleaning unit used with EGR systems to remove sulfates and soot before water reuse.
Alfa Laval PureNOx Prime X69. EGCS Scrubbers, SCR and Marine Air Emissions: Enhanced washwater treatment variant offering reduced footprint and higher throughput.
Alfa Laval PureSewage X63. Marine Auxiliary Machinery and Pumps: Membrane bioreactor sewage treatment plant compliant with MEPC.227(64) including special area standards.
Alfa Laval PureSOx X69. EGCS Scrubbers, SCR and Marine Air Emissions: Hybrid exhaust gas cleaning system supplied by Alfa Laval for open-loop, closed-loop and combined operation.
Alfa Laval PureSOx Connect X69. EGCS Scrubbers, SCR and Marine Air Emissions: Remote monitoring and analytics service for PureSOx scrubber fleets.
Alfa Laval S separator X19. Engine Room Watchkeeping and UMS Operations: Modern hermetic centrifugal separator using EPC 60 control for fuel and lube oil cleaning.
Alfa Laval S-Series X63. Marine Auxiliary Machinery and Pumps: Disc-stack separator family that succeeded the P-Series for modern marine engine room duties.
Alfa Laval S921 X63. Marine Auxiliary Machinery and Pumps: S-Series separator widely used for HFO and lube oil purification on two-stroke main engines.
Alfa Laval separator X61. Marine Lubricants and Cylinder Oils: Centrifugal purifier widely used to clean system oil of water and insoluble contaminants in marine diesel installations.
Alfa-class X91. Submarines and Submarine Cable Systems: Soviet Project 705 Lira titanium-hulled fast attack submarine class, now retired.
Alfalfa Pellets X1. Cargo Science, Commodities and Cargo Care: Self-heating Group B cargo under IMSBC; risk of fire on long voyages.
Alform X92. Marine Steel Suppliers and Shipbuilding Plate: Voestalpine brand family of high strength low alloy and quenched and tempered plate steels.
Alfred Wegener Institute X133. Polar Research Vessels and Polar Code Regimes: AWI, Helmholtz Centre for Polar and Marine Research, Bremerhaven, operates Polarstern and Neumayer III station.
Algae bloom X18. Ballast Water, Biofouling and Antifouling: Rapid proliferation of phytoplankton, sometimes seeded by ballast water discharges of cysts.
Algae bloom (under-ice) X27. Polar Code, Ice Navigation and Polar Operations: Spring biological production beneath sea ice, key to polar food web.
Algae cultivation at sea X57. Ocean Energy Beyond Wind: Cultivation of macroalgae or microalgae in open water arrays, sometimes proposed as a co-located use of ocean energy sites.
Algae Fouling X63. Marine Auxiliary Machinery and Pumps: Biological growth on sea chests, condenser tubes, and seawater strainers requiring periodic cleaning.
Algal Biofuel X111. Methanol, Ammonia and Alternative Marine Fuels: Marine biofuel pathway derived from cultivated microalgae lipids that remains at demonstration scale rather than commercial bunkering.
Algal Bloom D3. Marine environmental science, pollution and conservation: Rapid increase in algal abundance, sometimes harmful.
Algeciras X85. Ferries, Ro-Pax Operators and Routes: Spanish port at the Strait of Gibraltar hosting the busiest Mediterranean ferry corridor to Tangier Med and Ceuta.
Algeciras APM Terminals X138. Global Container Terminal Operators and Port Equipment: Maersk's hub on the Strait of Gibraltar, handling 5.0 million TEU in 2023 and serving as a primary Mediterranean transshipment node.
Algeciras Bahia X72. Bunkering Hubs and Bunker Suppliers: Port authority around the bay of Algeciras coordinating bunker barge movements with Tarifa traffic control.
Algeciras Bunker Anchorage X72. Bunkering Hubs and Bunker Suppliers: Designated waiting area off Algeciras where vessels take bunkers from CEPSA, Vemarsa, and Repsol barges.
Algeciras LNG Bunkering X110. LNG Bunkering Infrastructure and Vessels: Port of Algeciras LNG bunkering operations served by HAM Cryogenica and Repsol via truck-to-ship transfers.
Algeciras Port Authority APBA X72. Bunkering Hubs and Bunker Suppliers: Spanish port authority Autoridad Portuaria Bahia de Algeciras that licenses bunker suppliers in the bay.
Algeciras Reefer Hub X136. Reefer Vessels and Cool Chain Operators: APM Terminals Algeciras facility offering more than 2,000 reefer plugs, serving as the principal Mediterranean transshipment point for South American fruit reefer flows.
Algeria PSC X66. Port State Control and Regional MOUs: National PSC authority of Algeria, member of Mediterranean MOU.
Algerian Ship Registry X98. Ship Registries and Flag States: National registry administered by the Algerian Ministry of Transport.
Algoa Bay STS Bunkering X72. Bunkering Hubs and Bunker Suppliers: Ship to ship bunker operation off Port Elizabeth South Africa established in 2016 and suspended after the 2019 Chiyo Maru collision review.
Algoma Steel X92. Marine Steel Suppliers and Shipbuilding Plate: Canadian integrated steel producer at Sault Ste Marie, Ontario, supplier of hot rolled plate.
Algorithmic Lookout X109. Maritime Autonomous Surface Ships and MASS Code: The autonomy software function that performs the COLREGs Rule 5 lookout duty through sensor fusion when no human is present on the bridge.
ALH (Austal Auto Express) X132. High-Speed Craft, Hydrofoils and Ferry Operators: Marketing name for the Austal series of large vehicle-passenger catamarans derived from the 101 m and 102 m platforms.
Alia Yachts X35. Yacht and Superyacht Industry: Turkish builder in Antalya producing custom aluminum and steel superyachts.
Aliaga X28. Ship Recycling and End-of-Life: Ship recycling region near Izmir, Turkey, operating the landing slipway method with HKC and EU-listed facilities.
Aliaga Ship Recyclers Association X50. Ship Recycling, Demolition and Hong Kong Convention: The industry body coordinating the Turkish yards at Aliaga, representing facilities such as Leyal, Sok Denizcilik, Simsekler, and Isiksan.
Aliaga Ship Recyclers Association (GEMISANDER) X118. Ship Recycling Yards, Beaches and Regulation: Turkish trade body representing Aliaga yards in negotiations with the EU Commission on the EU List.
Aliakmon, The [1986] AC 785 X143. Landmark Maritime Law Cases and Doctrines: House of Lords held that a buyer of goods who lacks legal ownership or possessory title at the time of loss cannot recover in tort.
Aliasing D2. Hydrography, tides, waves, bathymetry and marine geology: Misinterpretation of high-frequency tidal signals due to insufficient sampling.
Aliasing (Altimetry) D5. Coastal processes, sea-level, cryosphere and ocean observation science: Misrepresentation of high-frequency signals by altimeter sampling.
Alibi memory X15. Ports, Terminals and Stevedoring: tamper-evident weighbridge record retained for legal verification.
Aliceville Lock X103. US Inland Waterway Towing and Barge: A lock on the Tennessee-Tombigbee Waterway in Alabama within the Bevill Reservoir reach.
Alignment laser X59. Offshore Wind O&M, CTVs and SOVs: Optical tool used by service technicians to verify gearbox to generator coupling alignment after drivetrain repair.
Alignment tolerance X58. Shipbuilding Yards and Construction: Permissible deviation in block-to-block joint geometry before forced fit-up is required.
Alignment, shaft X58. Shipbuilding Yards and Construction: Process of setting bearing offsets so the propeller shaft line meets calculated sag and gap tolerances.
Alinghi X84. Yacht Racing, Regattas and Sailing Governance: Swiss syndicate, backed by Ernesto Bertarelli, that won the America's Cup in 2003 (Auckland) and defended it in 2007 (Valencia).
Aliphatic polyurethane X45. Marine Paints, Coatings and Antifouling: Topcoat chemistry providing excellent color and gloss retention under UV exposure, used on superstructures and topsides.
Aliphatic Solvents X135. Chemical Tanker Operators and IBC Code Cargoes: Hexane, heptane and white spirit carried as Category Y or Z cargoes requiring epoxy or zinc silicate coatings and vapor return at load and discharge berths.
Alkali Metals X75. IMDG Code, Classes, Packing and Segregation: Class 4.3 substances such as sodium UN 1428 or potassium UN 2257 that liberate flammable gas in contact with water.
Alkaline Cylinder Oil X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring: Cylinder lubricant formulated with overbased calcium sulfonate or phenate detergents to neutralize sulfuric acid formed from high-sulfur fuel combustion.
Alkaline electrolyzer X34. Decarbonization, Alternative Fuels and Carbon Pricing: Mature electrolysis technology used to produce green hydrogen feedstock for e-fuels.
Alkaline reserve X61. Marine Lubricants and Cylinder Oils: Quantity of base additive remaining in a used cylinder oil that can still neutralize combustion acids, measured by Base Number.
Alkalinity D1. Physical and chemical oceanography and marine meteorology: Capacity of seawater to neutralize acid, a key parameter of the carbonate system.
Alkalinity (Total) X41. Cruise Ship Public Health and VSP/USPH: Buffer capacity of recreational water measured in mg/L as calcium carbonate, with VSP guidance of 60 to 180 mg/L for stable pH.
Alkalinity Sensor X69. EGCS Scrubbers, SCR and Marine Air Emissions: Inline instrument measuring washwater alkalinity used in closed-loop scrubber control loops.
Alkalinity Test X63. Marine Auxiliary Machinery and Pumps: Boiler water test measuring P and M values to control caustic and carbonate concentration.
Alkenes X135. Chemical Tanker Operators and IBC Code Cargoes: Reactive olefins such as butene-1, hexene-1 and octene-1 shipped under Category Y with strict temperature control and nitrogen blanketing on Stolt and Odfjell vessels.
Alkion Terminals Rotterdam X72. Bunkering Hubs and Bunker Suppliers: Independent storage operator handling marine gasoil and fuel oil parcels for ARA bunker trade.
Alkmaar-class X77. Naval Mine Warfare and Mine Countermeasures: The Royal Netherlands Navy variant of the Tripartite-class minehunter, with the lead ship HNLMS Alkmaar (M850) commissioned in 1983.
Alkyd X45. Marine Paints, Coatings and Antifouling: Oil-modified resin used in older marine paints and some accommodation finishes, largely superseded by epoxy and polyurethane in newbuilding.
Alkyl Phosphites X93. IBC Code and Chemical Tanker Operations: Group of organophosphorus compounds typically requiring Type 1 ship carriage under the IBC Code owing to their high marine and human toxicity profile.
Alkylates X1. Cargo Science, Commodities and Cargo Care: Refinery blending stock; carried in clean petroleum product (CPP) tankers.
ALL X73. Marine Hydrography, Charting and ENC: Admiralty List of Lights and Fog Signals.
All Energy Australia X119. Maritime Conferences, Trade Shows and Awards: Annual renewable and offshore wind exhibition in Melbourne since 2001, organized by Reed Exhibitions.
All fast X3. Ship Handling, Seamanship and Deck Vocabulary: Report that all mooring lines are secured.
All Fast Wire Cutting X50. Ship Recycling, Demolition and Hong Kong Convention: Severance of mooring wires and tug lines after the vessel is brought to its final resting plot at the demolition facility.
All gone X3. Ship Handling, Seamanship and Deck Vocabulary: Report that a line, anchor, or fitting has been let go.
All Hands F5. The Reference Layer: Glossary, Units, Signals and Information Sources: Entire ship's crew.
All India Seafarers Union X154. Maritime Welfare, Seafarer Charities, and MLC Rights: Indian trade union representing Indian seafarers on domestic and international voyages.
All Risks X4. Marine Insurance, P&I and Claims: cover against all fortuitous physical loss or damage not specifically excluded, codified for cargo in Institute Cargo Clauses (A).
All risks cover C3. Logistics, freight forwarding and multimodal trade: ICC(A) Institute Cargo Clauses A.
All Risks Marine Insurance X49. Ship Finance, Leasing and Maritime Capital Markets: Hull and machinery cover required by mortgagee banks as a condition of drawdown.
All Round Light X109. Maritime Autonomous Surface Ships and MASS Code: A navigation light visible through 360 degrees of horizon, required by COLREGs Annex I and verified by autonomous lighting checks before unmanned passage.
All Star Metals X118. Ship Recycling Yards, Beaches and Regulation: Brownsville, Texas, ship recycling facility (Port of Brownsville), historically demolishing US-flag commercial and government vessels under MARAD contracts.
All Telex Fixed (ATF) X161. Shipbroking, Freight Derivatives, and Baltic Indices: Term used in shipbroker negotiations to confirm that all subjects on a fixture have been lifted by exchange of telex or email.
All Time Saved X51. Maritime Arbitration, Law and BIMCO Clauses: A laytime expression crediting the charterer with time saved between completion of cargo operations and expiry of permitted laytime.
All Time Saved (ATS) X17. Chartering, Shipbroking and Freight Trading: Despatch basis covering laytime saved plus periods excepted from laytime.
All-Electric FPSO E4. Cruise, offshore energy and auxiliary/specialised fleets: FPSO with electrified utilities for emissions reduction.
All-Electric Terminal X169. Container Terminal Cranes, Yard Equipment, and Lashing: Container terminal where all major handling equipment runs on electric power rather than diesel, typified by Yangshan Phase IV in Shanghai.
All-In Rate X44. Shipping Indices, FFAs and Freight Markets: A single freight figure that bundles base ocean freight, bunker adjustment factors, and applicable surcharges into one quoted number.
All-Risk Cargo Insurance X104. Project Cargo Forwarders and Heavy Transport: Marine policy covering project cargo against most physical loss or damage perils.
All-Terrain Crane (AT) X104. Project Cargo Forwarders and Heavy Transport: Wheeled mobile crane combining road mobility with off-road jobsite capability.
ALL.SPACE X68. Maritime Satcom and Telecommunications: British manufacturer, formerly Isotropic Systems, of multi-beam electronically steered antennas suitable for maritime use.
Allan Line X39. Pre-1900 Maritime History: Canadian shipping company founded by Hugh Allan in 1854 carrying mail and emigrants between Liverpool and Quebec.
Allcargo Logistics X104. Project Cargo Forwarders and Heavy Transport: Mumbai-headquartered Indian multinational with project, NVOCC, and contract logistics divisions.
Allen and Overy X114. Maritime Arbitration and Shipping Law Firms: International law firm now part of A and O Shearman, with shipping finance and disputes work across London and Singapore.
Allergen Control Plan X41. Cruise Ship Public Health and VSP/USPH: Documented galley procedure addressing the major food allergens, segregated storage, dedicated utensils, and crew training.
Allergic reaction protocol X36. Shipboard Medical, Telemedicine and Seafarer Health: Mild reaction managed with antihistamine (cetirizine); anaphylaxis treated with IM adrenaline 0.5 mg (0.3 mg auto-injector) and TMAS contact.
Allianz Cyber X25. Maritime Cybersecurity, OT and IT: Cyber insurance line written by Allianz Global Corporate and Specialty, including marine endorsements.
Allianz Global Corporate and Specialty (AGCS) X117. Marine Insurance Markets, Captives and Reinsurance: A leading global marine insurer publishing the annual Safety and Shipping Review.
Allianz Maritime Cyber X107. Maritime Cybersecurity and OT Security: Cyber insurance offering from Allianz Global Corporate & Specialty for shipping clients.
Allianz SpA v West Tankers Inc (Case C-185/07) [2009] ECR I-663 X143. Landmark Maritime Law Cases and Doctrines: Court of Justice of the European Union held that anti-suit injunctions to enforce London arbitration agreements were incompatible with the Brussels I Regulation.
Allied Shipbroking X161. Shipbroking, Freight Derivatives, and Baltic Indices: Athens-based shipbroker founded in 1982 publishing widely cited weekly dry and wet S&P and chartering reports.
Allied Shipbroking Inc. X71. Shipbrokers and Brokerage Firms: Piraeus-based shipbroker specializing in dry bulk sale and purchase and chartering, publisher of a weekly S&P report.
Allision X4. Marine Insurance, P&I and Claims: contact between a moving vessel and a fixed object such as a wharf or bridge.
Allision (ice) X27. Polar Code, Ice Navigation and Polar Operations: Contact between a moving ship and a stationary ice feature such as fast ice or grounded berg.
Allision Survey X155. Marine Surveying Practice and Cargo Inspection: A casualty survey conducted after a moving vessel strikes a stationary object such as a jetty, distinguishing the event from a collision between two moving ships.
Allocation Key D4. Fisheries, aquaculture, blue economy and marine resources: Rule sharing total allowable catch among members of an RFMO.
Allocation Notice X44. Shipping Indices, FFAs and Freight Markets: Document issued by a clearing house assigning matched FFA trades to clearing members for margining and settlement.
Allocation of costs X152. Maritime Arbitration and Dispute Resolution: Tribunal decision on which party bears arbitration costs and at what proportion, usually following the principle that costs follow the event under English-seated arbitrations.
Allometric Growth D4. Fisheries, aquaculture, blue economy and marine resources: Differential growth of body parts, used in stock assessment.
Allowable axial load X175. Port Engineering, Dredging, Breakwaters, and Quays: Maximum vertical load that a pile or sheet pile section may carry within the design code's factor of safety.
Allowable Axle Load X104. Project Cargo Forwarders and Heavy Transport: Maximum permitted weight per axle on a specified road or bridge segment.
Allowable Biological Catch (ABC) X131. Commercial Fisheries, Trawler Fleets and Seafood Processors: NOAA Fisheries scientific reference point that caps the maximum harvest a stock can sustain, used to set Annual Catch Limits under the Magnuson-Stevens Act.
Allowable Diminution X5. Marine Surveying and Inspection: Maximum thickness loss permitted by class before steel renewal is required.
Allowable Hold Loading X8. IACS, Class Rules and Class Notations: maximum permissible cargo mass per hold derived per IACS UR-S22 for bulk carriers.
Allowable Lashing Force X9. Cargo Securing, Lashing and Stability Vocabulary: Working load limit applied in CSS Annex 13 calculations, equal to MSL or LC.
Allowable stack weight X76. Stevedoring, Lashing and Cargo Securing: Maximum aggregate mass that may be loaded above a base container, governed by corner post strength and lashing capacity.
Allowable Still Water Bending Moment X54. Naval Architecture Software and IACS Rules: Maximum hogging or sagging bending moment permitted by class rules in calm water for a given loading condition.
Allowable Stress X96. Hull Integrity Monitoring and Strain Gauges: Class-society-derived permissible stress used as the reference for HMS alarm thresholds on hull girder bending and shear.
Allowable Stress Method X54. Naval Architecture Software and IACS Rules: Traditional design approach comparing computed stress against a permissible fraction of yield, used in legacy IACS UR S formulations.
Allowable Wastage X142. Classification Societies and Class Notations: Permissible thickness diminution of hull plating before steel renewal, defined in IACS UR Z10.
Allowance (EUA) X34. Decarbonization, Alternative Fuels and Carbon Pricing: EU Emissions Trading System unit equal to 1 tonne of CO2 equivalent.
Allowance, shrinkage X58. Shipbuilding Yards and Construction: Extra plate length added at block edges to compensate for weld shrinkage during erection.
Allowances X157. Marine Loss Adjusters, GA Practice, and Casualty Firms: Items credited in a general average adjustment, such as wages and maintenance of crew at a port of refuge under York-Antwerp Rules.
Allowed Mixed Loading X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers: Combinations of explosives compatibility groups permitted together per Table 7.2.7.1.4 (e.g., 1.4S with most other groups).
Allowlist X107. Maritime Cybersecurity and OT Security: Security policy permitting only approved applications, addresses, or devices to operate within a network.
Alloy Yachts X125. Superyacht Industry, Builders and Brokers: Defunct Auckland, New Zealand sailing yacht builder that delivered Mondango 3 and Vertigo before closing in 2015.
Alloying Element X100. Marine Cathodic Protection and Anodes: A minor metal added to anode base metal, such as indium in aluminum anodes, to prevent passivation and ensure consistent dissolution.
Allseas X60. Marine Salvage and Wreck Removal: Swiss-Dutch offshore contractor operating heavy lift and pipelay vessels including Pioneering Spirit and Solitaire.
Allseas Audacia X81. Project Cargo, Heavy-Lift and Module Carriers: Allseas-owned S-lay pipelay vessel converted from a bulk carrier in 2007.
Allseas Calamity Jane X81. Project Cargo, Heavy-Lift and Module Carriers: Allseas trenching support vessel.
Allseas Fortitude X81. Project Cargo, Heavy-Lift and Module Carriers: Allseas pipelay support vessel.
Allseas Group X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Swiss-Dutch offshore contractor specializing in pipelay, heavy lift, and subsea construction, owner of Solitaire, Audacia, Lorelay, and Pioneering Spirit.
Allseas Highland Navigator X81. Project Cargo, Heavy-Lift and Module Carriers: Allseas survey vessel.
Allseas Lorelay X81. Project Cargo, Heavy-Lift and Module Carriers: Allseas pipelay vessel commissioned in 1986 for S-lay operations.
Allseas Oceanic X81. Project Cargo, Heavy-Lift and Module Carriers: Allseas trenching support vessel.
Allseas Pioneering Spirit X81. Project Cargo, Heavy-Lift and Module Carriers: Allseas-owned twin-hull installation vessel, the world's largest construction vessel at 477 m length and 124 m beam, designed for single-lift installation and removal of offshore platform topsides…
Allseas Solitaire X81. Project Cargo, Heavy-Lift and Module Carriers: Allseas S-lay pipelay vessel of about 300 m length, long the world record holder for offshore pipeline length installed.
Allure of the Seas X24. Cruise, Passenger Ship and Ferry Operations: Royal Caribbean Oasis class cruise ship delivered 2010, 225,282 GT.
Allweiler X63. Marine Auxiliary Machinery and Pumps: German pump manufacturer (now part of CIRCOR) producing screw, progressing cavity, and centrifugal pumps for marine use.
Allweiler SM X63. Marine Auxiliary Machinery and Pumps: Twin-screw pump series for cargo, transfer, and stripping service.
Allweiler SN X63. Marine Auxiliary Machinery and Pumps: Three-screw pump series widely applied as fuel oil booster and lube oil pumps.
Allyl Alcohol X75. IMDG Code, Classes, Packing and Segregation: UN 1098, Class 6.1 with Class 3 subsidiary risk, Packing Group I, requires inhalation protection.
Alma X103. US Inland Waterway Towing and Barge: A Wisconsin town on the Upper Mississippi River and the site of Lock and Dam 4.
Almanac (Nautical) B3. Nautical Science: Annual ephemeris tables for celestial navigation.
Almaz Shipyard X62. Naval Warships and Combat Systems: Saint Petersburg shipbuilder producing small missile ships and patrol craft for the Russian Navy.
ALMDS X77. Naval Mine Warfare and Mine Countermeasures: The AN/AES-1 Airborne Laser Mine Detection System, a blue-green laser sensor pod carried by the MH-60S helicopter to detect near-surface moored mines.
Almirante X39. Pre-1900 Maritime History: Spanish naval rank equivalent to admiral, used in the Carrera de Indias treasure-fleet system.
Almirante Brion-class X130. National Coast Guards and Cutter Fleets: Philippine Coast Guard 44-meter patrol vessel built by Tenix Defence Australia, derived from Bay-class.
Almirante Irizar X133. Polar Research Vessels and Polar Code Regimes: ARA Almirante Irizar, Argentine Navy Polar Class PC3 icebreaker rebuilt 2017 after 2007 fire, operates Argentine Antarctic stations.
Almirante Latorre-class X62. Naval Warships and Combat Systems: Historical Chilean Navy battleship class; the name has also been associated with later Chilean surface combatants.
Almucantar X16. Nautical Science, Navigation and COLREGs: Small circle on the celestial sphere parallel to the horizon; circle of equal altitude.
Aloft X3. Ship Handling, Seamanship and Deck Vocabulary: Above the upper deck, especially in the rigging.
Alongside X3. Ship Handling, Seamanship and Deck Vocabulary: Beside a pier, jetty, or another vessel.
Alongside Delivery X104. Project Cargo Forwarders and Heavy Transport: Term placing cargo on the quay within reach of the vessel's gear or shore crane.
Alongside Dismantling X28. Ship Recycling and End-of-Life: Recycling method with the ship moored to a quay throughout cutting operations.
Alongside Method X30. Tug Operations and Harbour Towage: Tug working pressed against the ship's side, transmitting force through bow and stern fenders.
Alongside Phase X22. Piracy, Maritime Security and Armed Protection: Stage of an attack when a pirate skiff is hull to hull with the target, immediately before boarding.
Alongside Time X86. Port Agency, Husbandry and Disbursement: Period between first line ashore and last line let go, recorded in the Statement of Facts.
ALP Defender X79. Tugs and Towage Industry: ALP Maritime Services ocean-going anchor handling tug of the ALP Future-class series.
ALP Forward X79. Tugs and Towage Industry: ALP Maritime Services Future-class ocean tug operating from Den Helder for long-distance towage.
ALP Future Class X79. Tugs and Towage Industry: Series of four ocean tugs built for ALP Maritime Services by Niigata Shipbuilding, each rated above 300 tonnes bollard pull.
ALP Keeper X79. Tugs and Towage Industry: ALP Maritime Services Future-class ocean tug for ultra-long-distance towage operations.
ALP Maritime Services X79. Tugs and Towage Industry: Dutch ocean towage specialist headquartered in Den Helder, owned by Teekay Offshore and later Altera Infrastructure.
ALP Striker X79. Tugs and Towage Industry: Lead vessel of the ALP Future-class series rated at approximately 309 tonnes bollard pull.
ALP Sweeper X79. Tugs and Towage Industry: ALP Maritime Services Future-class ocean tug used for rig moves and project towage.
ALPA X32. Marine Pilotage and Pilot Operations: Asociacion Argentina de Practicos, Argentine pilots' association representing pilots on the Rio de la Plata and Parana River.
Alpha Bank Shipping X49. Ship Finance, Leasing and Maritime Capital Markets: Greek bank with a dedicated shipping unit lending to Greek owners and international clients.
Alpha Bulkers X44. Shipping Indices, FFAs and Freight Markets: Greek dry bulk operator whose chartering desk participates in Capesize and Panamax spot fixing referenced in Baltic route assessments.
Alpha Code X83. ISO Container Manufacturing and Leasing: Three-letter owner prefix portion of the four-letter BIC code under ISO 6346.
Alpha Flag X82. Saturation Diving and Offshore Diving Operations: International Code flag "A" indicating "diver down, keep clear."
Alpha Line X14. Offshore Oil and Gas Marine Operations: Primary mooring or hawser leg in a SPM arrangement.
Alpha Lubricator X38. Propellers, Stern Gear and Shaft Lines: MAN ES electronically controlled cylinder lubrication system relevant to the prime mover driving the shaft line.
Alpha Lubricator Retrofit X113. Drydock and Ship Repair Yards: MAN Energy Solutions cylinder oil dosing upgrade installed during drydock to reduce lube oil consumption on two-stroke engines.
Alpha Marine Services X147. Ship Recycling, Hong Kong Convention, and Recycling Yards: Ship recycling and cash buyer historically active in the South Asian market.
Alpha Test Phase X109. Maritime Autonomous Surface Ships and MASS Code: An early controlled trial stage for a MASS system, typically confined to a protected waterway with a chase boat and full manual override.
Alpha Ventus X42. Offshore Wind Installation and Cable Lay: First German commercial offshore wind farm, commissioned in the North Sea in 2010.
Alphabridge X79. Tugs and Towage Industry: Wartsila integrated bridge concept frequently fitted on modern harbor and escort tugs.
Alphaliner X71. Shipbrokers and Brokerage Firms: Container shipping data and analytics provider widely used by box brokers and operators.
Alphaliner-Class STS X94. Port Machinery and Quay Equipment Makers: Informal trade designation for ship-to-shore cranes capable of working vessels above 18,000 TEU with outreach beyond 65 meters.
Alphanumeric X16. Nautical Science, Navigation and COLREGs: Display showing letters and digits, used for ECDIS and ARPA data readouts.
Alphasat X68. Maritime Satcom and Telecommunications: Inmarsat I-4A F4 satellite launched in 2013 to extend L-band capacity over Europe, the Middle East, Africa, and parts of Asia.
Alphatron Marine X74. AIS Data, Vessel Tracking and Maritime Intelligence: Dutch supplier of bridge electronics including AIS Class A units under the AlphaBridge line.
Alphons-Type Tug X137. Harbour Tugs, Towage Operators and Tug Builders: Compact Dutch-style harbour tug built by Damen and Padmos for inland and small-port operations.
Alphonse Letzer X124. Dredging Industry and Reclamation Contractors: Former DEME CSD, predecessor class to D'Artagnan, retired and recycled by 2015.
ALRS B3. Nautical Science: Admiralty List of Radio Signals (Vols 1-6).
ALRS Volume 5 X23. AIS, GMDSS, IALA Buoyage and Aids to Navigation: GMDSS volume of the UK Admiralty List of Radio Signals.
ALS Marine X115. Marine Bunker and Cargo Surveying: Australia-headquartered global testing group operating bunker fuel laboratories in Singapore, Fujairah, and Rotterdam providing ISO 8217 conformity testing.
Alsace X106. Naval Surface Combatants: French Navy FREMM-DA air-defense variant frigate D656, commissioned 2022 by Naval Group at Lorient.
Alstom Oceade X57. Ocean Energy Beyond Wind: 1.4 MW horizontal-axis tidal stream turbine developed by Alstom and tested at EMEC, later transferred to General Electric.
Altenwerder CTA X138. Global Container Terminal Operators and Port Equipment: HHLA's container terminal in Hamburg, opened in 2002 as one of the first highly automated facilities in Europe, with 84 AGVs and 15 rail-mounted gantries.
Altera Infrastructure X81. Project Cargo, Heavy-Lift and Module Carriers: Bermuda-domiciled offshore midstream operator, formerly Teekay Offshore, operating shuttle tankers, FPSOs and FSOs.
Alternate Management System (AMS) X18. Ballast Water, Biofouling and Antifouling: USCG designation allowing a foreign type-approved BWMS to be used in US waters for up to five years from BWM compliance date.
Alternating Light (Al) X23. AIS, GMDSS, IALA Buoyage and Aids to Navigation: Light character showing different colors in succession.
Alternative Compliance Program X98. Ship Registries and Flag States: US Coast Guard program delegating statutory survey to recognized classification societies for US-flag vessels.
Alternative Fuel D6. Decarbonization, emissions and alternative fuels: Fuel other than conventional fuel oil, including LNG, methanol, ammonia, and hydrogen.
Alternative Fuels Infrastructure Regulation X67. Marine Electrical Systems and Shore Power: EU Regulation 2023/1804 requiring TEN-T core maritime ports to provide onshore power supply for container and passenger ships by 1 January 2030.
Alternative Maritime Power X67. Marine Electrical Systems and Shore Power: Shore power program initiated by the Port of Los Angeles in 2004 to allow berthed vessels to shut down auxiliary engines.
Alternative Routing Study X104. Project Cargo Forwarders and Heavy Transport: Comparative evaluation of multiple haul corridors for an oversize move.
Altimetry D5. Coastal processes, sea-level, cryosphere and ocean observation science: Measurement of sea surface height using radar from satellites.
Altitude (celestial) B3. Nautical Science: Angle between horizon and celestial body.
Altitude corrections X16. Nautical Science, Navigation and COLREGs: Adjustments to sextant altitude for index error, dip, refraction, semidiameter and parallax.
Altitude Diving X82. Saturation Diving and Offshore Diving Operations: Diving above sea level requiring modified decompression profiles.
Altitude observed (Ho) X16. Nautical Science, Navigation and COLREGs: Sextant altitude corrected for all errors; used in sight reduction.
Altitude sextant (Hs) X16. Nautical Science, Navigation and COLREGs: Angle read directly from the sextant micrometer and arc.