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Glossary

Maritime glossary, terms beginning with S (page 11)

All maritime glossary terms that begin with the letter S, drawn from every subject section. 4952 entries.

Showing 250 of 4952 terms (page 11 of 20).

Single Packaging X75. IMDG Code, Classes, Packing and Segregation
Packaging that does not require inner packagings to perform a containment function, such as UN approved drums and IBCs.
Single Phase Flow X54. Naval Architecture Software and IACS Rules
CFD assumption ignoring free surface, used in wetted hull friction studies.
Single Point Mooring X153. Offshore Drilling Rigs, FPSOs, and Offshore Vessels
Generic term covering CALM, SALM, and turret moorings allowing weathervaning of moored tankers and FPSOs.
Single Point Mooring (SPM) Buoy Pipeline X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines
Subsea pipeline transferring crude oil between an SPM buoy and a shoreline tank farm.
Single point of failure X12. Maritime Casualties and Investigation
Component whose loss defeats the entire safety function.
Single Rod Lashing X9. Cargo Securing, Lashing and Stability Vocabulary
Container lashing using one rod, common for second tier.
Single Sign On X48. Maritime Cybersecurity
Authentication scheme allowing one set of credentials to access multiple shipping company services.
Single Species Assessment D4. Fisheries, aquaculture, blue economy and marine resources
Stock assessment focusing on one species at a time.
Single Up X30. Tug Operations and Harbour Towage
Order to reduce mooring lines to a single line of each type before letting go.
Single Voyage Charter X161. Shipbroking, Freight Derivatives, and Baltic Indices
Voyage charter for a single laden leg, settled on rate per metric ton or Worldscale points.
Single Voyage Policy X4. Marine Insurance, P&I and Claims
cargo or hull policy covering one voyage.
Single window X15. Ports, Terminals and Stevedoring
harmonized electronic reporting interface, e.g., UN/CEFACT Single Window Recommendation 33.
Single Window Data Set (IMO Compendium) E3. Technology, digitalization and smart shipping
Harmonized ship-port-shore data elements.
Single-beam echosounder X10. Marine Biology, Fisheries and Oceanography
Hydrographic sonar emitting a narrow downward beam to measure depth.
Single-Effect Evaporator X63. Marine Auxiliary Machinery and Pumps
Fresh water generator with one evaporation stage, the simplest configuration.
Single-fuel mode B2. Marine Engineering
Operation of dual-fuel engine on liquid only.
Single-Handed X84. Yacht Racing, Regattas and Sailing Governance
Sailed by one person, as in the Vendee Globe and Route du Rhum.
Single-Hoist STS Crane X46. Container Terminal Operations
A ship-to-shore crane with one trolley and one hoist, the conventional configuration.
Single-Hull Tank Barge X103. US Inland Waterway Towing and Barge
A pre-OPA 90 design with a single bottom and side plating, phased out of US inland petroleum service by 2015.
Single-Lift X169. Container Terminal Cranes, Yard Equipment, and Lashing
Spreader configuration for one 20 or 40 foot container per cycle, the basic STS spreader mode.
Single-pack coating X45. Marine Paints, Coatings and Antifouling
Coating supplied in a single component, cured by solvent evaporation or atmospheric moisture.
Single-pass BWMS X18. Ballast Water, Biofouling and Antifouling
System that treats water in one transit through the equipment, with no holding time required.
Single-Point Bunkering (SPB) X110. LNG Bunkering Infrastructure and Vessels
Bunkering arrangement using a single manifold connection for LNG transfer, common on LNG-fueled merchant ships.
Single-Screw Towboat X103. US Inland Waterway Towing and Barge
A towboat with one propeller, generally limited to small fleet and harbor work.
Single-service Article X41. Cruise Ship Public Health and VSP/USPH
Disposable item such as a paper cup intended for one use to limit cross-contamination.
Single-stern bearing arrangement X38. Propellers, Stern Gear and Shaft Lines
Stern-tube design with only the aft bearing, omitting the forward bearing to reduce length.
Single-Suction Pump X63. Marine Auxiliary Machinery and Pumps
Centrifugal pump with one suction eye, the most common impeller configuration.
Single-Trolley STS X94. Port Machinery and Quay Equipment Makers
Conventional ship-to-shore crane with one trolley moving between waterside and landside.
Single-Trolley STS Crane X46. Container Terminal Operations
A ship-to-shore crane in which one trolley performs both the over-water and over-apron motion in a single cycle.
Single-Use Liner X83. ISO Container Manufacturing and Leasing
One-trip flexible liner installed in a dry container for bulk loading.
Singlehanded Sailing F4. Recreational Boating, Yachting and Sport
Solo sailing, the basis of races such as Vendee Globe.
Sink (Pollutant) D3. Marine environmental science, pollution and conservation
Compartment where a pollutant accumulates.
Sink Compartment 1 X41. Cruise Ship Public Health and VSP/USPH
Wash bay of the three-compartment sink containing warm detergent solution.
Sink Compartment 2 X41. Cruise Ship Public Health and VSP/USPH
Rinse bay of the three-compartment sink containing potable water.
Sink Compartment 3 X41. Cruise Ship Public Health and VSP/USPH
Sanitize bay of the three-compartment sink containing the chosen chemical sanitizer at proper concentration.
Sinker X77. Naval Mine Warfare and Mine Countermeasures
The heavy anchor weight of a moored mine that holds the buoyant case at a programmed depth.
Sinking X12. Maritime Casualties and Investigation
Loss of a vessel beneath the surface, typically by flooding.
Sinking Salvage X60. Marine Salvage and Wreck Removal
Operations on partially or fully submerged vessels to recover cargo or remove the wreck.
Sinokor X166. Inland Waterways, Ferries, RoRo, and Short Sea Shipping
The South Korean intra-Asia short sea container line headquartered in Seoul, jointly operating Heung-A Line with Heung-A Shipping.
Sinopec Fuel Oil X116. Global Bunker Anchorages, Hubs and Supply Infrastructure
Chinese marine fuels arm supplying bonded bunkers at Zhoushan, Shanghai, and Hong Kong.
Sinopec Lubricant X61. Marine Lubricants and Cylinder Oils
Marine and industrial lubricants business of Sinopec supplying cylinder, system, and trunk piston engine oils.
Sinopec Marina CY 100 X61. Marine Lubricants and Cylinder Oils
Sinopec 100 BN cylinder oil for two-stroke engines on residual fuel.
Sinopec Marina CY 140 X61. Marine Lubricants and Cylinder Oils
Sinopec 140 BN cylinder oil for high-sulfur residual fuel operation on scrubber-fitted vessels.
Sinopec Marina CY 40 X61. Marine Lubricants and Cylinder Oils
Sinopec 40 BN cylinder oil for two-stroke crosshead engines on low-sulfur fuel.
Sinopec Marina CY 50 X61. Marine Lubricants and Cylinder Oils
Sinopec 50 BN cylinder oil for two-stroke engines on low-to-intermediate sulfur fuel.
Sinopec Marina CY 70 X61. Marine Lubricants and Cylinder Oils
Sinopec 70 BN cylinder oil for two-stroke engines on intermediate sulfur fuel.
Sinopec Marine Bunker X72. Bunkering Hubs and Bunker Suppliers
Bunker arm of Sinopec supplying bunkers at all major Chinese ports and through joint venture Chimbusco.
Sinopec Zhoushan X72. Bunkering Hubs and Bunker Suppliers
Sinopec subsidiary operating bunker barges and storage at the Zhoushan free trade zone.
Sinosteel X92. Marine Steel Suppliers and Shipbuilding Plate
Chinese state owned enterprise active in iron ore, steel trade, and steel processing.
Sinosure X49. Ship Finance, Leasing and Maritime Capital Markets
China Export and Credit Insurance Corporation, the principal Chinese export credit insurer.
Sint Annaland X124. Dredging Industry and Reclamation Contractors
Dutch dredged-material island restoration site.
SINTEF Ocean X160. Maritime Academies, Universities, and STCW Certification
Norwegian SINTEF research institute in Trondheim covering aquaculture, fisheries, marine technology, and ocean energy.
Sintela Mira X74. AIS Data, Vessel Tracking and Maritime Intelligence
LRIT and ship-tracking service line within BMT and partner organizations.
Sintered metal anode X45. Marine Paints, Coatings and Antifouling
ICCP anode using mixed metal oxide coating on titanium substrate.
Sinusoidal Filter X67. Marine Electrical Systems and Shore Power
Output filter on a variable frequency drive that smooths the PWM waveform to a near-sinewave.
SIOFA D4. Fisheries, aquaculture, blue economy and marine resources
South Indian Ocean Fisheries Agreement.
SIP X61. Marine Lubricants and Cylinder Oils
Swirl Injection Principle by Hans Jensen Lubricators, where cylinder oil is sprayed into the air swirl to coat the liner uniformly.
SIP Swirl Injection Principle X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring
Hans Jensen cylinder oil injection system distributing oil into scavenge air swirl for uniform liner coating.
SIPG X138. Global Container Terminal Operators and Port Equipment
See Shanghai International Port Group.
SIPMM X169. Container Terminal Cranes, Yard Equipment, and Lashing
Singapore Institute of Purchasing and Materials Management terminology occasionally used in container-handling literature.
Sir David Attenborough X133. Polar Research Vessels and Polar Code Regimes
RRS Sir David Attenborough, BAS flagship delivered 2020 by Cammell Laird, Polar Class PC4, 15,000 GT.
Sir Winston Churchill X128. Sail Training Ships and Tall Ship Associations
UK Sail Training Association three masted topsail schooner built 1965 at Hessle, 41 m length, operated 1966 to 2000, sold to private owner.
SIRB X21. STCW Certificates, Crewing and Seafarer Welfare
Seafarer's Identification and Record Book, US Coast Guard document analogous to a CDC.
SIRC Cardiff X144. Bridge Simulators, Engine Room Simulators, and Maritime Training Equipment
Seafarers International Research Centre, Cardiff University.
SIRC Cardiff University X55. Marine Simulators, Training and Maritime Academies
Seafarers International Research Centre at Cardiff University, researching seafarer welfare and labor markets.
SIRE X40. Tanker Vetting, SIRE and VIQ
The Ship Inspection Report Programme, established by OCIMF in 1993.
SIRE (Ship Inspection Report Programme) X146. Port State Control Regimes, MoUs, and Inspection Systems
The OCIMF tanker vetting database that shares some deficiency-coding conventions with PSC.
SIRE 1.0 X40. Tanker Vetting, SIRE and VIQ
Informal industry shorthand for the original SIRE programme that uses VIQ7 and CIQ for chemical tankers and remained operational until the SIRE 2.0 transition.
SIRE 2.0 A7. Compliance, certification and enforcement
Ship Inspection Report Programme, OCIMF, transitioned from VIQ7 to a behavior-based program in 2024.
SIRE 2.0 Inspector Hardware X150. Tanker Vetting: OCIMF SIRE, CDI, RightShip, and TMSA
The OCIMF-specified tablet, peripherals, and software stack mandated for all SIRE 2.0 inspections.
SIRE 2.0 Inspector Tablet X40. Tanker Vetting, SIRE and VIQ
The OCIMF-issued tablet on which SIRE 2.0 inspectors capture responses, photographs, and inspector notes.
SIRE 2.0 PVQ (Pre-Inspection Questionnaire) X150. Tanker Vetting: OCIMF SIRE, CDI, RightShip, and TMSA
The operator-completed questionnaire feeding the SIRE 2.0 dynamic question set.
SIRE 2.0 Question Categories X40. Tanker Vetting, SIRE and VIQ
The three categories of hardware, process, and human factor used to structure SIRE 2.0 questions.
SIRE 2.0 VIQ Question Library X150. Tanker Vetting: OCIMF SIRE, CDI, RightShip, and TMSA
The full set of question variants from which the SIRE 2.0 engine selects the applicable inspection questions.
SIRE Inspection Booking Note X40. Tanker Vetting, SIRE and VIQ
The platform record confirming inspection scheduling between the Submitting Member, operator, and inspector.
SIRE Inspection Coordination X86. Port Agency, Husbandry and Disbursement
Coordination of SIRE inspections for tanker vetting.
SIRE Inspection Cost Recovery X40. Tanker Vetting, SIRE and VIQ
The fee structure through which Submitting Members fund SIRE inspections via OCIMF.
SIRE Re-Inspection X40. Tanker Vetting, SIRE and VIQ
A subsequent inspection sometimes requested by a Submitting Member to verify closure of significant observations.
SIRE Recipient X40. Tanker Vetting, SIRE and VIQ
An organization that subscribes to SIRE reports but does not itself commission inspections.
SIRE Submitting Member X40. Tanker Vetting, SIRE and VIQ
An OCIMF member that commissions SIRE inspections and submits the resulting reports to the programme.
Sirena Marine X156. Superyacht Industry, Builders, and Yacht Charter Market
Turkish builder at Tuzla producing the Sirena and Azuree composite motor and sailing yachts.
SIRENAC B3. Nautical Science
Paris MoU PSC inspection database.
Sirenia X10. Marine Biology, Fisheries and Oceanography
Order of fully aquatic herbivorous marine mammals (manatees and dugongs).
Sirius X124. Dredging Industry and Reclamation Contractors
Boskalis fall-pipe vessel of 25,500 t rock capacity, sister to Rockpiper.
Sirius Shipping Bunker X72. Bunkering Hubs and Bunker Suppliers
Swedish coastal shipping company operating LNG bunker vessel Coralius in joint venture with Gasum.
Sirius Star X127. Maritime Security, Anti-Piracy and PMSCs
Saudi-owned VLCC hijacked 15 November 2008 off Kenya carrying USD 100 million of crude, released 9 January 2009 for USD 3 million.
Sirius, SS X39. Pre-1900 Maritime History
British steamer of 1837 that crossed from Cork to New York in April 1838 just ahead of Great Western.
SIS (Seafloor Information System) X129. Hydrographic Offices, Survey Vessels and Marine Cartography
Kongsberg multibeam acquisition software historically used for EM-series sonars, succeeded by K-Controller.
Sisal Rope X9. Cargo Securing, Lashing and Stability Vocabulary
Natural fibre rope; MSL = 0.33 x BL.
Sister berth X15. Ports, Terminals and Stevedoring
identical berth designed for the same vessel class.
Sister Block (SKF/SNL) X38. Propellers, Stern Gear and Shaft Lines
Plummer-block style intermediate shaft bearing, used in some smaller and offshore applications.
Sister hook X3. Ship Handling, Seamanship and Deck Vocabulary
Pair of hooks pivoting on a common pin.
Sister ship action X163. Marine Accident Investigation Agencies and Landmark Inquiries
Safety action by an operator following a casualty investigation to apply lessons across sister ships in the fleet.
Sister Ship Arrest X51. Maritime Arbitration, Law and BIMCO Clauses
The arrest of a vessel in the same beneficial ownership as the offending vessel as security for a maritime claim.
Sister Ship Clause X17. Chartering, Shipbroking and Freight Trading
Allows arrest of a sister ship to enforce maritime claims.
Sister twistlock X76. Stevedoring, Lashing and Cargo Securing
Twistlock designed in pairs to lock two stacked containers together at one corner.
Sister vessel sale X71. Shipbrokers and Brokerage Firms
S&P transaction involving siblings within a series, often packaged by brokers.
Sisu X52. Polar Code, Arctic and Antarctic Shipping
Finnish state icebreaker built in 1976, sister of Urho.
Sisu Industries X169. Container Terminal Cranes, Yard Equipment, and Lashing
Finnish maker of terminal tractors and heavy yard vehicles, headquartered in Karjaa.
Sisu TRC X169. Container Terminal Cranes, Yard Equipment, and Lashing
Terminal tractor series formerly built by Sisu Auto for port and RoRo terminal use.
Sitakunda X28. Ship Recycling and End-of-Life
Coastal belt north of Chittagong hosting Bangladesh's recycling yards.
Sitakunda Coastal Zone X50. Ship Recycling, Demolition and Hong Kong Convention
The Bangladeshi coastal area north of Chittagong hosting the country's ship recycling industry.
Sitakunda Upazila X118. Ship Recycling Yards, Beaches and Regulation
Subdistrict of Chittagong District, Bangladesh, hosting the Chittagong ship recycling cluster.
SITC X6. Container, Intermodal and Trade Codes
Standard International Trade Classification, UN statistical commodity nomenclature.
Site Establishment X104. Project Cargo Forwarders and Heavy Transport
Set up of crane pads, access roads, and lay down areas before project lifts.
Site Investigation Campaign X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines
Combined geophysical and geotechnical survey defining engineering parameters along cable and pipeline routes.
Site Survey X43. Marine Surveying and Warranty Surveying
A pre-installation inspection of an offshore field location covering bathymetry, geotechnics, and existing infrastructure.
Site-Specific Guidelines X97. Polar Expedition Cruise and IAATO Operations
IAATO and AECO guidelines covering individual landing sites with maps, visitor zones, and special instructions.
Sittard X124. Dredging Industry and Reclamation Contractors
Dutch maintenance dredging hub.
Sittwe X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes
A Myanmar port intermittently identified in sanctions evasion reporting, including DPRK trade.
Situation Report X80. Maritime Search and Rescue Coordination
SITREP issued by SMC to authorities and stakeholders.
Situational Awareness Display X109. Maritime Autonomous Surface Ships and MASS Code
The integrated view of tracked targets, planned route, and ship state used by remote operators and onboard crew.
Siwertell X15. Ports, Terminals and Stevedoring
Bruks Siwertell screw-type ship unloader.
Six Draft Readings X155. Marine Surveying Practice and Cargo Inspection
The fundamental observation of forward, midship, and aft drafts on both port and starboard sides during a draft survey.
Six Meter Rule X159. Marine Pilotage, Pilot Districts, and Pilots' Associations
Older ladder length convention now superseded by the 9 meter combination arrangement threshold under SOLAS V/23.
Six Sides X75. IMDG Code, Classes, Packing and Segregation
IMDG requirement that a CTU placard or mark with marine pollutant or lithium battery may be required on more than two sides depending on rules.
Six-Point Lashing X9. Cargo Securing, Lashing and Stability Vocabulary
Securing pattern with six anchor points.
Size and Type Code X83. ISO Container Manufacturing and Leasing
Four-character ISO 6346 code such as 22G1 or 45G1 identifying container size and type.
Sjofartsverket X73. Marine Hydrography, Charting and ENC
The Swedish Maritime Administration in Norrkoping, the Swedish HO.
Sjokartverket X73. Marine Hydrography, Charting and ENC
The historical Norwegian term for the hydrographic chart authority, now within Kartverket.
Sjømannskirken X102. Seafarer Welfare and Maritime Charities
Norwegian Seamen's Church and Mission, founded 1864 in Bergen, with around 30 churches worldwide.
Sjømannsmisjonen X102. Seafarer Welfare and Maritime Charities
Norwegian abbreviation for Sjømannskirken, the Norwegian Seamen's Mission.
Sjömanskyrkan X102. Seafarer Welfare and Maritime Charities
Swedish Seamen's Mission within the Church of Sweden, operating Swedish seamen's churches abroad.
Skagen X124. Dredging Industry and Reclamation Contractors
Danish port maintained by local and Dutch dredgers.
Skagen Ship Recycling X118. Ship Recycling Yards, Beaches and Regulation
Danish EU-listed ship recycler at Skagen.
Skagerrak HVDC X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines
Series of HVDC submarine cables between Norway and Denmark commissioned between 1976 and 2014, totaling 1,700 MW.
Skagerrak Pilot X159. Marine Pilotage, Pilot Districts, and Pilots' Associations
Independent deep-sea pilot offering passage advice through the Skaw rounding into and out of the Baltic.
Skagerrak Pilot Service X32. Marine Pilotage and Pilot Operations
Deep-sea pilot service for transits between the North Sea and Baltic via the Skagerrak.
Skandi Achiever X82. Saturation Diving and Offshore Diving Operations
DOF-built diving support vessel.
Skandi Arctic X82. Saturation Diving and Offshore Diving Operations
TechnipFMC chartered DSV.
Skandi Vinland X82. Saturation Diving and Offshore Diving Operations
TechnipFMC chartered DSV.
Skangas X110. LNG Bunkering Infrastructure and Vessels
Former Nordic LNG distribution company, renamed Gasum, the original operator of Coralius.
Skangas / Gasum X149. Marine Fuels, Bunkering, and Alternative Fuels
A Nordic LNG and bio-LNG supplier serving marine bunkering in the Baltic and North Sea.
Skanti TRP 8400 X95. GMDSS Equipment and Survival Craft Communications
MF/HF SSB transceiver with DSC originally produced by Skanti of Denmark for GMDSS service.
Skaw / Skagen X116. Global Bunker Anchorages, Hubs and Supply Infrastructure
Danish bunker anchorage at the entrance to the Baltic, served by Monjasa, Bunker One, and Statoil Fuel and Retail.
Skaw Bunker Anchorage X72. Bunkering Hubs and Bunker Suppliers
Bunker call at the Skagen anchorage Denmark by Bunker One, Monjasa, and Dan Bunkering.
Skaw-Passero Range X44. Shipping Indices, FFAs and Freight Markets
Northwest Europe and Mediterranean geographical range used in Baltic dry bulk route definitions.
Skeg X30. Tug Operations and Harbour Towage
Fixed longitudinal fin on the underside of an escort tug used to generate side force in indirect mode.
Skeg-mounted azimuth (skeg pod) X38. Propellers, Stern Gear and Shaft Lines
Pod mounted on the leading edge of the skeg in some research and cruise ship installations.
Skew angle X38. Propellers, Stern Gear and Shaft Lines
Geometric skew defined as the angle subtended at the shaft axis by the midchord lines at the tip relative to the root.
Skew-induced unsteady loading X38. Propellers, Stern Gear and Shaft Lines
Reduction of blade-rate unsteady forces brought about by phased blade entry into the wake peak via skew.
SKF marine bearings X38. Propellers, Stern Gear and Shaft Lines
SKF supplies thrust bearings, intermediate plummer-block bearings, and bearing-monitoring sensors for shaft lines.
Ski-jump X11. Naval Vessels, Warship Systems and Naval Architecture
Upturned bow ramp aiding STOVL or STOBAR launch.
Skid X9. Cargo Securing, Lashing and Stability Vocabulary
Sliding base for heavy cargo movement.
Skidding X81. Project Cargo, Heavy-Lift and Module Carriers
Method of moving heavy modules across deck or onto vessel by hydraulic skid shoes on greased beams.
Skidding System X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines
Topside system on pipelay vessels for moving long stalks of pipe across the firing line.
Skiff X15. Ports, Terminals and Stevedoring
small line-handling boat.
Skikda LNG plant X56. LNG/LPG Carriers and IGC Code
Algerian onshore liquefaction plant where a January 2004 explosion in a steam boiler destroyed three liquefaction trains, an onshore event distinct from any vessel incident.
Skill and Efforts (Article 13(1)(e)) X99. Marine Salvage Awards and SCOPIC
Criterion rewarding the skill and efforts of the salvors in salving the property and life.
Skill and Efforts (Environment, Article 13(1)(b)) X99. Marine Salvage Awards and SCOPIC
Distinct criterion rewarding the skill and efforts of the salvors in preventing or minimizing damage to the environment.
Skimmer X60. Marine Salvage and Wreck Removal
Device for mechanical removal of oil from the water surface.
Skimmer Boom Combination X60. Marine Salvage and Wreck Removal
Joint deployment of containment boom and skimmer for higher recovery efficiency.
Skimmer Throughput Efficiency (TE) X126. Marine Oil Spill Response and OPRC Regimes
ASTM F-631 ratio of oil recovered to total fluid recovered, indicator of water uptake.
Skin and corona ICCP X45. Marine Paints, Coatings and Antifouling
Common configurations of impressed current cathodic protection.
Skin friction X165. Marine Coatings, Antifouling, and Hull Husbandry
The portion of total ship resistance due to viscous shear on the wetted surface, increased by hull roughness.
Skin of the Ship Definition X5. Marine Surveying and Inspection
ISGOTT definition relevant to overboard piping inspection.
Skipjack Tuna D4. Fisheries, aquaculture, blue economy and marine resources
Major commercial tuna species, Katsuwonus pelamis.
Skipjack Tuna (Katsuwonus pelamis) X131. Commercial Fisheries, Trawler Fleets and Seafood Processors
Most-caught tuna globally at around 2.8 million tonnes per year, the basis of canned light meat tuna.
Skirt X20. LNG Operations and Custody Transfer
Cylindrical support beneath Moss spherical tank attaching to the inner hull at the equator.
Skirt pile X175. Port Engineering, Dredging, Breakwaters, and Quays
Pile driven through a sleeve on a jacket or template to fix it to the seabed.
Skretting X131. Commercial Fisheries, Trawler Fleets and Seafood Processors
Stavanger-based aquafeed producer owned by Nutreco, present in 18 countries and the world's largest salmon feed supplier.
SKS Bunker Tanker fleet X116. Global Bunker Anchorages, Hubs and Supply Infrastructure
Norwegian operated tankers serving North European ports.
Skuld X53. Marine Insurance, P&I and Hull Clauses
Assuranceforeningen Skuld, a Norwegian-headquartered International Group P&I club founded in 1897.
Skuld P&I X36. Shipboard Medical, Telemedicine and Seafarer Health
P&I club operating PEME scheme for Scandinavian and international owners.
Skuldelev Ships F2. Maritime Culture, Heritage, Archaeology, Art and Museums
Five eleventh-century Viking ships excavated 1962 in Roskilde Fjord.
Sky class X24. Cruise, Passenger Ship and Ferry Operations
Suite category on Royal Caribbean Oasis and Quantum class ships.
Sky lounge X35. Yacht and Superyacht Industry
Upper-deck guest lounge with panoramic glazing.
Sky Princess X64. Cruise Industry Operators, Brands and Ships
Princess Cruises Royal-class ship delivered in 2019.
SkyConnect Cable X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines
Internal name for proposed cable infrastructure linking aerial and submarine fiber assets.
SkyEdge X68. Maritime Satcom and Telecommunications
Gilat VSAT platform used in some maritime networks.
SkyMart X114. Maritime Arbitration and Shipping Law Firms
Reference to a sample case name commonly used as a teaching example.
SkySails Power X112. IMO GHG Strategy, CII, EEXI and EU Maritime Regulation
German developer of automated towing kite systems for wind-assisted propulsion.
Skywave X16. Nautical Science, Navigation and COLREGs
Radio wave reflected by the ionosphere.
Slab Anode X100. Marine Cathodic Protection and Anodes
A flat rectangular sacrificial anode bolted or welded onto the hull, the most common geometry for ship CP.
Slack X3. Ship Handling, Seamanship and Deck Vocabulary
Looseness in a line; let out.
Slack Lashing X9. Cargo Securing, Lashing and Stability Vocabulary
Lashing not pre-tensioned; not credited in calculation.
Slack Tank X1. Cargo Science, Commodities and Cargo Care
Partially filled liquid tank; free-surface effect risk.
Slack water X3. Ship Handling, Seamanship and Deck Vocabulary
Brief period of no tidal current.
Slag Recovery from Cutting X50. Ship Recycling, Demolition and Hong Kong Convention
The collection of metallurgical slag generated during oxy-fuel cutting.
Slamming B1. Naval Architecture
Impact loading from re-entry of bow flat into the wave.
Slamming Pressure X96. Hull Integrity Monitoring and Strain Gauges
Impulsive pressure on hull plating during impact with the sea surface, often measured by piezoelectric transducers.
SLAR X126. Marine Oil Spill Response and OPRC Regimes
Side-Looking Airborne Radar, principal sensor on dedicated spill surveillance aircraft.
Slava-class cruiser X106. Naval Surface Combatants
Russian Navy Project 1164 guided-missile cruiser class, originally three ships in service.
Slave Trade Act 1807 X39. Pre-1900 Maritime History
British statute abolishing the slave trade throughout the British Empire on March 25, 1807.
Slave Trade, Atlantic F1. Maritime History
Sixteenth to nineteenth century forced transportation across the Middle Passage.
SLBM X11. Naval Vessels, Warship Systems and Naval Architecture
Submarine-Launched Ballistic Missile.
SLCM X11. Naval Vessels, Warship Systems and Naval Architecture
Submarine-Launched Cruise Missile.
Sledge Hammer Penetrometer (PCPT) X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines
Geotechnical tool used during cable route surveys to measure soil resistance for burial planning.
Sleipner CO2 storage X57. Ocean Energy Beyond Wind
Norwegian project at the Sleipner gas field that has injected CO2 into the Utsira formation since 1996.
Sleipnir X42. Offshore Wind Installation and Cable Lay
Heerema semi submersible crane vessel with twin 10,000 t cranes used on offshore substation and foundation installation.
Sleipnir, SSCV X167. Major Salvage Companies, Wreck Removals, and Equipment
Heerema crane vessel commissioned in 2019 with two 10,000 tonne cranes for combined 20,000 tonne tandem lifts.
Slender ship theory B1. Naval Architecture
Asymptotic theory for high-Fn vessels.
Slenderness ratio X162. Naval Architecture, Stability, Resistance, and Structural Design
Length-displacement ratio L divided by the cube root of volume of displacement, large values denoting slender hulls.
Slewing Bearing X81. Project Cargo, Heavy-Lift and Module Carriers
Large bearing supporting the rotation of heavy-lift cranes on offshore and MPP vessels.
Slewing crane X15. Ports, Terminals and Stevedoring
crane with rotating superstructure.
Slick Surveillance X126. Marine Oil Spill Response and OPRC Regimes
Aerial or satellite mapping of an oil slick per Bonn Agreement BAOAC code.
Slickbar X126. Marine Oil Spill Response and OPRC Regimes
US manufacturer of containment boom and Jason fence boom, based in Connecticut.
Slickgone EW X126. Marine Oil Spill Response and OPRC Regimes
Dasic water-dilutable type 3 dispersant for shoreline and helicopter use.
Slickgone NS X126. Marine Oil Spill Response and OPRC Regimes
Dasic standard concentrate type 2/3 dispersant.
Sliding Equilibrium X9. Cargo Securing, Lashing and Stability Vocabulary
Condition where applied force equals total resisting force from friction and lashings.
Sliding Force X9. Cargo Securing, Lashing and Stability Vocabulary
Net force tending to displace cargo horizontally.
Sliding watertight door X170. SOLAS 1974 Convention: Chapter-by-Chapter Glossary
Power-operated door complying with SOLAS II-1/13, closable centrally from navigation bridge in not more than 60 seconds.
Sliding-pressure operation B2. Marine Engineering
Boiler operation with variable pressure.
Slime X165. Marine Coatings, Antifouling, and Hull Husbandry
Synonym for biofilm; the early-stage microbial layer that establishes within hours of immersion.
Slime control X45. Marine Paints, Coatings and Antifouling
Capability of an antifouling or fouling-release coating to limit accumulation of microbial slime.
Slime layer X18. Ballast Water, Biofouling and Antifouling
Microfouling biofilm of bacteria and diatoms forming within days of immersion.
Sling Chart X104. Project Cargo Forwarders and Heavy Transport
Reference table giving working load limit at various sling angles.
Sling Psychrometer X88. Marine Surface Preparation and Coatings Application
Whirling instrument with wet- and dry-bulb thermometers used to determine ambient relative humidity and dew point per ASTM E337.
Sling, Cargo X1. Cargo Science, Commodities and Cargo Care
Looped strap, wire, or chain used in lifts.
Slinger Signaller X59. Offshore Wind O&M, CTVs and SOVs
GWO module qualifying personnel to attach loads and direct cranes during lifting operations.
Slip X3. Ship Handling, Seamanship and Deck Vocabulary
Allow to run; berth for a small craft.
Slip (apparent) X38. Propellers, Stern Gear and Shaft Lines
1 - V / (n P), the apparent slip of the propeller through the water.
Slip Critical Connection X104. Project Cargo Forwarders and Heavy Transport
Bolted joint engineered to resist slipping under design load, common in lifting structures.
Slip Joint X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines
Telescoping pipeline joint absorbing thermal expansion in subsea systems.
Slip Leader X117. Marine Insurance Markets, Captives and Reinsurance
The first underwriter to sign the slip and set terms, with authority on quotations and endorsements.
Slip Mat X9. Cargo Securing, Lashing and Stability Vocabulary
Synonym for anti-skid mat.
Slip Policy X4. Marine Insurance, P&I and Claims
policy issued in standard slip-policy form under the Market Reform Contract.
Slip Ring X67. Marine Electrical Systems and Shore Power
Rotating conductor that transfers current to or from a rotor winding through stationary brushes.
Slip ring (shaft grounding) X38. Propellers, Stern Gear and Shaft Lines
Carbon brush running on a slip ring on the intermediate shaft, bonding shaft to hull electrically.
Slip rope X3. Ship Handling, Seamanship and Deck Vocabulary
Single rope rove to be cast off quickly from the ship.
Slip rule X152. Maritime Arbitration and Dispute Resolution
Power to correct clerical mistakes or accidental slips in awards under section 57 English Arbitration Act 1996 and equivalents.
Slip Stop X159. Marine Pilotage, Pilot Districts, and Pilots' Associations
Wooden cleat under the lower spreader preventing the ladder from twisting against the hull.
Slipper limpet (Crepidula fornicata) X18. Ballast Water, Biofouling and Antifouling
Invasive gastropod in European waters.
Slipstream contraction X38. Propellers, Stern Gear and Shaft Lines
Diameter reduction of the propeller slipstream downstream of the disc, predicted by momentum theory.
Slipway C4. Ports, terminals and coastal/marine civil engineering
Inclined ramp for vessel launch and recovery.
Slipway (marine renewable) X57. Ocean Energy Beyond Wind
Coastal facility for launching and recovering tidal turbines and wave devices.
Slipway Pull X28. Ship Recycling and End-of-Life
Operation of pulling a vessel up a concrete ramp at landing slipway yards.
Sloan Foundation Argo Support D1. Physical and chemical oceanography and marine meteorology
Funding instances supporting biogeochemical Argo expansion.
Slocum glider X65. ROVs, AUVs, USVs and Marine Robotics
Teledyne Webb Research buoyancy driven underwater glider available in coastal, deep and thermal variants.
SLOM X126. Marine Oil Spill Response and OPRC Regimes
Servicios Latinoamericanos de Operaciones Maritimas, regional response cooperative covering parts of Latin America.
Sloop F4. Recreational Boating, Yachting and Sport
Single-masted fore-and-aft rigged vessel with one headsail.
Sloop-of-war X11. Naval Vessels, Warship Systems and Naval Architecture
Single-deck warship rated below frigate.
Slop chest X3. Ship Handling, Seamanship and Deck Vocabulary
Stock of clothing and small articles for crew use.
Slop reception X15. Ports, Terminals and Stevedoring
facility for tank washings under MARPOL.
Slop Reception Facility X118. Ship Recycling Yards, Beaches and Regulation
Onshore facility receiving tank slops from arriving vessels; mandatory under HKC for liquid-residue handling.
Slop Removal X28. Ship Recycling and End-of-Life
Disposal of cargo slops, often containing hydrocarbons and chemicals.
Slop Sink X41. Cruise Ship Public Health and VSP/USPH
Synonym for mop sink, used for cleaning equipment fill and discharge.
Slop Tank Residues X50. Ship Recycling, Demolition and Hong Kong Convention
The hydrocarbon residues in cargo and bunker slop tanks, removed and disposed of as Part II IHM material.
Slop Tank Survey X5. Marine Surveying and Inspection
Quantity and quality measurement of slops on tankers.
Slope Failure D2. Hydrography, tides, waves, bathymetry and marine geology
Mass wasting on a submarine slope.
Slope Stability Assessment X28. Ship Recycling and End-of-Life
Geotechnical assessment of beach slopes used for repeated beachings.
Sloping top caisson X175. Port Engineering, Dredging, Breakwaters, and Quays
Vertical breakwater caisson with an inclined upper face designed to deflect wave run-up and reduce overtopping.
Sloshing X20. LNG Operations and Custody Transfer
Dynamic liquid motion causing impact pressures on membrane; restricts partial fills 10 to 70 percent on many carriers.
Sloshing Impact Pressure X96. Hull Integrity Monitoring and Strain Gauges
Transient pressure on tank walls from liquid cargo movement, measured during sloshing model tests and onboard.
Sloshing Loads X54. Naval Architecture Software and IACS Rules
Internal cargo tank loads addressed in IACS UR S33 and CSR-OT.
Slot X6. Container, Intermodal and Trade Codes
Vessel space for one TEU.
Slot (CPA) X16. Nautical Science, Navigation and COLREGs
Time and range window in which CPA occurs.