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Glossary

Maritime glossary, terms beginning with T (page 6)

All maritime glossary terms that begin with the letter T, drawn from every subject section. 2313 entries.

Showing 250 of 2313 terms (page 6 of 10).

Tomakomai X124. Dredging Industry and Reclamation Contractors
Japanese port dredged by Penta-Ocean and Toa.
Tomato Paste X120. Marine Catering, Provisions and Ship Chandlers
IMPA 550111 double concentrate, 850 g tin, ambient store.
Tombigbee River X103. US Inland Waterway Towing and Barge
An Alabama river forming part of the Black Warrior-Tombigbee Waterway and the southern leg of the Tenn-Tom.
Tomlinson, Hon. Sir Stephen X99. Marine Salvage Awards and SCOPIC
Retired English Court of Appeal judge serving as a Lloyd's Salvage Arbitrator.
TOMSA (Trial Operations Master Service Agreement) X150. Tanker Vetting: OCIMF SIRE, CDI, RightShip, and TMSA
A commercial agreement that may incorporate vetting acceptance as a precedent.
Tonengeneral Sekiyu X61. Marine Lubricants and Cylinder Oils
Predecessor company to current Eneos arrangements that distributed Mobilgard marine lubricants in Japan.
Tonga Maritime Registry X98. Ship Registries and Flag States
National registry of the Kingdom of Tonga.
Tonga Trench X10. Marine Biology, Fisheries and Oceanography
Deep ocean trench in the southwest Pacific.
Tongariki Cable Landing X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines
Pacific cable landing in Vanuatu serving regional connectivity projects.
Tongue (water mass) X10. Marine Biology, Fisheries and Oceanography
Elongated lobe of a water mass with distinct properties extending into surrounding water.
Tonnage X64. Cruise Industry Operators, Brands and Ships
General term for the size or carrying capacity of a vessel.
Tonnage (GT, Fishing Vessel) X87. Fishing Vessels and Fisheries Management
Gross tonnage measured under the 1969 Tonnage Convention, applied to fishing vessels of 24 meters and above.
Tonnage 1969 X158. IMO Conventions, Protocols, Codes, and Resolutions
International Convention on Tonnage Measurement of Ships, adopted 23 June 1969 and entered into force 18 July 1982.
Tonnage Act 1773 X39. Pre-1900 Maritime History
British statute regulating the measurement of merchant ships for duties.
Tonnage Certificate X5. Marine Surveying and Inspection
Statutory certificate of gross and net tonnage.
Tonnage Certificate Deficiency X146. Port State Control Regimes, MoUs, and Inspection Systems
A 01xxx deficiency relating to the International Tonnage Certificate (1969).
Tonnage Convention X54. Naval Architecture Software and IACS Rules
IMO 1969 convention defining gross and net tonnage used in many class fees.
Tonnage Convention 1969 A4. Other IMO and ILO conventions and codes
International Convention on Tonnage Measurement of Ships, defining GT and NT.
Tonnage Cross-Reference A2. Maritime safety legislation: SOLAS and its codes
SOLAS applies to ships of various sizes; tonnage measured under Tonnage 1969.
Tonnage demolished annually X147. Ship Recycling, Hong Kong Convention, and Recycling Yards
Industry metric, typically quoted in LDT or DWT, used to size the global recycling market (roughly 600 to 900 ships per year).
Tonnage Limitation X51. Maritime Arbitration, Law and BIMCO Clauses
Limitation of liability calculated by reference to the tonnage of the vessel under LLMC 1976 or the 1996 Protocol.
Tonnage List X44. Shipping Indices, FFAs and Freight Markets
Shipbroker compilation of vessels open for fixture in a given region, indirectly informing FFA sentiment.
Tonnage Measurement Survey X43. Marine Surveying and Warranty Surveying
A statutory inspection under the International Convention on Tonnage Measurement of Ships to determine gross and net tonnage.
Tonnage opening C2. Ship operations, crewing and technical management
Manhole on tonnage deck.
Tonnage Pricing per LDT X50. Ship Recycling, Demolition and Hong Kong Convention
The fundamental commercial unit of demolition pricing, expressed in US dollars per LDT.
Tonnage report X71. Shipbrokers and Brokerage Firms
Weekly broker report listing sales and purchases by sector.
Tonnage tax C1. Commercial shipping, chartering, economics and finance
Alternative tax regime based on ship tonnage rather than profits.
Tonnage Wars F1. Maritime History
Twentieth-century Allied versus Axis merchant attrition campaigns.
Tonne CO2 equivalent B2. Marine Engineering
Common unit for FuelEU and EU ETS reporting.
Tonne per centimeter immersion (TPC) B1. Naval Architecture
Mass required to sink the ship one centimeter.
Tonnes Bollard Pull X79. Tugs and Towage Industry
Standard unit for stating a tug's pulling capability, abbreviated tbp.
Tonnes per centimeter immersion TPC X162. Naval Architecture, Stability, Resistance, and Structural Design
Mass that must be added to immerse the hull by one centimeter, equal to (Aw times rho) divided by 100.
Tonometry (no entry) X16. Nautical Science, Navigation and COLREGs
Not navigation.
Toochi X124. Dredging Industry and Reclamation Contractors
Inland Indian river dredging by DCI.
Tooke Gauge X88. Marine Surface Preparation and Coatings Application
Destructive cross-section instrument measuring dry film thickness by microscopic examination of a cut through the coating per ASTM D4138.
Tool port C4. Ports, terminals and coastal/marine civil engineering
Governance model where port authority owns and operates assets, private labour.
Tool, fairing X58. Shipbuilding Yards and Construction
Hydraulic clamp or jack used during fit-up.
Toolox X92. Marine Steel Suppliers and Shipbuilding Plate
SSAB branded family of prehardened tool and engineering steels supplied as plate.
Toothed whale X10. Marine Biology, Fisheries and Oceanography
Member of suborder Odontoceti.
Top Bracing X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring
Hydraulic or mechanical lateral support between engine top platform and hull structure to suppress H-mode vibration.
Top Bridge Fitting X9. Cargo Securing, Lashing and Stability Vocabulary
Connector across tops of two adjacent containers.
Top Discharge (Separator) X63. Marine Auxiliary Machinery and Pumps
Configuration in which clean oil is removed from the top of the separator bowl.
Top dressing X124. Dredging Industry and Reclamation Contractors
Final placement of clean material over reclamation surface.
Top Fishing Nations X87. Fishing Vessels and Fisheries Management
Per FAO SOFIA, principal capture producers include China, Indonesia, India, Peru, Russia, and the United States.
Top handler X15. Ports, Terminals and Stevedoring
empty container forklift with top spreader.
Top hat X42. Offshore Wind Installation and Cable Lay
Reference flange detail nickname.
Top Kill X126. Marine Oil Spill Response and OPRC Regimes
Source control method of pumping kill mud into a flowing well, attempted unsuccessfully at Macondo.
Top Lift X75. IMDG Code, Classes, Packing and Segregation
Method of lifting containers by top corner castings; tank containers must withstand top lift loads per ISO standards.
Top Lift Beam X104. Project Cargo Forwarders and Heavy Transport
Lift beam connected at the top of a project unit to suspend it from the crane hook.
Top Lift Frame X83. ISO Container Manufacturing and Leasing
Lifting frame engaging only the top corner castings, used by reach stackers and gantry cranes.
Top Lifter X46. Container Terminal Operations
A counterbalanced lift truck fitted with a top-lift spreader used for laden containers in lower stacks.
Top Pick X169. Container Terminal Cranes, Yard Equipment, and Lashing
Top-lift forklift used for stacking empty containers, typically up to seven or eight high.
Top ring zone X61. Marine Lubricants and Cylinder Oils
Region of the cylinder liner near top dead center where peak temperatures and pressures stress the lubricant film.
Top Side Rail X83. ISO Container Manufacturing and Leasing
Longitudinal frame member running along the top of the container side wall.
Top Tensioned Riser X14. Offshore Oil and Gas Marine Operations
Vertical riser kept in tension by surface tensioners.
Top Tier X9. Cargo Securing, Lashing and Stability Vocabulary
Highest tier in a container stack; usually requires lashing.
Top Up Equity X49. Ship Finance, Leasing and Maritime Capital Markets
Additional sponsor equity injected to maintain loan to value compliance.
Top-Down Control D4. Fisheries, aquaculture, blue economy and marine resources
Predator influence on lower trophic levels.
Top-Lift Truck X94. Port Machinery and Quay Equipment Makers
Counterbalanced forklift with overhead twistlock spreader for stacking containers, distinct from a reach stacker.
Topaz X125. Superyacht Industry, Builders and Brokers
147 m Lurssen delivered 2012 to Mansour bin Zayed.
TOPAZ Capping Stack X126. Marine Oil Spill Response and OPRC Regimes
OSRL's 18-3/4 inch 15,000 psi subsea capping stack at Stavanger.
Topaz Dinghy F4. Recreational Boating, Yachting and Sport
Topper International rotomolded class.
Topcoat X45. Marine Paints, Coatings and Antifouling
Final coat of an atmospheric exposure system, providing color, gloss, and weather resistance.
TOPEX/Poseidon D5. Coastal processes, sea-level, cryosphere and ocean observation science
Pioneering NASA-CNES altimetry mission.
Topgallant X3. Ship Handling, Seamanship and Deck Vocabulary
Mast or sail above the topmast.
TOPIA X108. Marine Insurance and P&I Clubs
The Tanker Oil Pollution Indemnification Agreement, a voluntary IGP&I arrangement supplementing the IOPC Supplementary Fund for larger tanker spills.
Topical anesthetic eye drops X36. Shipboard Medical, Telemedicine and Seafarer Health
Tetracaine or proxymetacaine for foreign-body removal.
Toplis Marine X78. Voyage Optimization and Vessel Performance Software
A marine consultancy and services group involved in performance, technical, and claims related work.
Topmark X16. Nautical Science, Navigation and COLREGs
Shape mounted atop a buoy or beacon for identification.
Topmast X3. Ship Handling, Seamanship and Deck Vocabulary
Second section of a mast above the lower mast.
Topographic Slope D2. Hydrography, tides, waves, bathymetry and marine geology
Gradient of the seabed.
Topographic survey X175. Port Engineering, Dredging, Breakwaters, and Quays
Land survey of elevations and features behind a quay or above the high water mark.
Topper Dinghy F4. Recreational Boating, Yachting and Sport
11-foot plastic single-handed dinghy.
Topping lift X3. Ship Handling, Seamanship and Deck Vocabulary
Rope supporting the outboard end of a boom or derrick.
Topping off C1. Commercial shipping, chartering, economics and finance
Final cargo intake to reach desired loadline.
Topping out X58. Shipbuilding Yards and Construction
Erection of the highest block of a structure, sometimes ceremoniously marked.
TOPS (RBS) X46. Container Terminal Operations
A terminal operating system product of Realtime Business Solutions used at container terminals worldwide.
Topsail Schooner X39. Pre-1900 Maritime History
A schooner carrying square topsails on the foremast, sometimes called a hermaphrodite brig in older American usage.
Topside X3. Ship Handling, Seamanship and Deck Vocabulary
Side of the hull above the waterline.
Topside Cable Pull-In X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines
Operation lifting a submarine cable end from the seabed up through an OSP J-tube into the topside switchgear.
Topside icing X27. Polar Code, Ice Navigation and Polar Operations
Accretion of ice on superstructure, masts, and rigging from spray and precipitation.
Topside Lift X167. Major Salvage Companies, Wreck Removals, and Equipment
Crane lift of structures or sections from a wreck or platform onto a transport barge.
Topside Manifold X20. LNG Operations and Custody Transfer
Ship deck assembly hosting cargo presentation flanges, drip trays, and emergency shutdown valves.
Topside Structural Analysis X54. Naval Architecture Software and IACS Rules
FEA of offshore topsides performed in Sesam GeniE, MAESTRO, or SACS.
Topside Tank Inspection X5. Marine Surveying and Inspection
Close-up survey of topside ballast tanks in bulk carriers.
Topsides X84. Yacht Racing, Regattas and Sailing Governance
The hull area between the waterline and the deck edge.
Topsides Installation X81. Project Cargo, Heavy-Lift and Module Carriers
Offshore operation in which an integrated platform topside is set onto its substructure, increasingly by single lift.
TopSlip Joint X123. Offshore Wind Installation Vessels and Operators
Connection method for monopile to transition piece without grout or bolts, deployed at Borssele V demonstration site.
Topsoe SynCOR Ammonia X140. Ammonia as Marine Fuel and Hydrogen Shipping
Autothermal reformer technology enabling smaller blue NH3 footprint.
Topsoil placement X124. Dredging Industry and Reclamation Contractors
Application of fertile cap over reclaimed land for revegetation.
Tor Station X133. Polar Research Vessels and Polar Code Regimes
Norwegian Polar Institute summer-only station in Queen Maud Land.
Tornado X84. Yacht Racing, Regattas and Sailing Governance
A 20-foot catamaran designed by Rodney March in 1967, an Olympic class from 1976 to 2008.
Tornado II X165. Marine Coatings, Antifouling, and Hull Husbandry
Jotun chlorinated rubber legacy antifouling brand largely retired in favor of tin-free SPCs.
Tornado-class X77. Naval Mine Warfare and Mine Countermeasures
A historical Royal Navy minesweeping motor launch class.
Tornado, International F4. Recreational Boating, Yachting and Sport
Olympic catamaran 1976 to 2008.
Tornio X92. Marine Steel Suppliers and Shipbuilding Plate
Outokumpu integrated stainless steelworks in northern Finland.
Torpedo Anchor X14. Offshore Oil and Gas Marine Operations
Free-fall finned penetrator anchor used by Petrobras.
Torpedo Pile X153. Offshore Drilling Rigs, FPSOs, and Offshore Vessels
Free-fall installed steel pile shaped like a torpedo used as deepwater mooring anchor, pioneered in Brazil.
Torque (propeller) X38. Propellers, Stern Gear and Shaft Lines
Shaft torque absorbed by the propeller, equal to KQ rho n^2 D^5 in open water.
Torque meter X38. Propellers, Stern Gear and Shaft Lines
Strain-gauge or magneto-elastic device on the intermediate shaft measuring shaft torque continuously.
Torque tool X65. ROVs, AUVs, USVs and Marine Robotics
API 17D class subsea hydraulic tool deployed by an ROV manipulator to operate subsea valve stems and overrides.
Torque wrench X59. Offshore Wind O&M, CTVs and SOVs
Calibrated tool used to verify bolt preload on foundation, tower, and drivetrain joints.
Torque-Speed Diagram X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring
Engine load diagram defining permissible operating area bounded by torque-rich and speed-rich limits.
Torremolinos Convention (1977) X87. Fishing Vessels and Fisheries Management
Original IMO convention on the safety of fishing vessels, never entered into force.
Torremolinos Protocol (1993) X87. Fishing Vessels and Fisheries Management
Protocol updating the 1977 Convention, superseded by the 2012 Cape Town Agreement.
Torres Strait pilot X32. Marine Pilotage and Pilot Operations
AMSA-licensed pilot for compulsory pilotage of Torres Strait since 6 October 2006.
Torres Strait Pilots X159. Marine Pilotage, Pilot Districts, and Pilots' Associations
Reef pilots licensed under Australian Marine Order 54 for compulsory pilotage through the Prince of Wales and Great North East Channels.
Torres Strait PSSA X171. MARPOL 73/78: Annex-by-Annex Detailed Glossary
The Particularly Sensitive Sea Area in the strait between Australia and Papua New Guinea, designated by IMO in 2005 with associated pilotage measures.
Torrey Canyon X126. Marine Oil Spill Response and OPRC Regimes
1967 grounding off Cornwall releasing 119,000 tonnes of Kuwaiti crude, catalyst for IMO MARPOL development.
Torrey Canyon (1967) X12. Maritime Casualties and Investigation
Liberian tanker grounded on Seven Stones reef on 18 March 1967 spilling about 119,000 tonnes; spurred the 1969 Intervention Convention and CLC.
Torrey Canyon casualty (1967) X163. Marine Accident Investigation Agencies and Landmark Inquiries
Liberian-flag VLCC that grounded on Pollard's Rock, Seven Stones, on 18 March 1967 spilling about 119,000 tonnes of crude oil, investigated by Liberia as flag State and the subject of a UK…
Torsion meter X19. Engine Room Watchkeeping and UMS Operations
Strain gauge or magnetic device measuring shaft torque.
Torsional fatigue X42. Offshore Wind Installation and Cable Lay
Failure mode considered in dynamic cable design under repeated twisting.
Torsional vibration X19. Engine Room Watchkeeping and UMS Operations
Cyclic twist in shaft system, design limited by class.
Tortola X35. Yacht and Superyacht Industry
Largest of the British Virgin Islands and home of the BVI Charter Yacht Society.
Tortola, BVI X156. Superyacht Industry, Builders, and Yacht Charter Market
Main island of the British Virgin Islands and the central yacht charter hub of the Eastern Caribbean with bases at Road Town and Nanny Cay.
Tortue FLNG X153. Offshore Drilling Rigs, FPSOs, and Offshore Vessels
Greater Tortue Ahmeyim FLNG project served by Gimi FLNG offshore Mauritania and Senegal.
Toss oars X3. Ship Handling, Seamanship and Deck Vocabulary
Raise oars vertically in salute.
Total X112. IMO GHG Strategy, CII, EEXI and EU Maritime Regulation
TotalEnergies, French oil company and Sea Cargo Charter signatory.
Total (TotalEnergies Marine Fuels) X149. Marine Fuels, Bunkering, and Alternative Fuels
TotalEnergies' marine fuels business and operator of major LNG bunker vessels including Gas Agility and Gas Vitality.
Total acid number X61. Marine Lubricants and Cylinder Oils
Measure of acidic constituents in a lubricant determined by potentiometric titration per ASTM D664.
Total acid number (TAN) X47. Marine Fuel Quality and ISO 8217
Milligrams of potassium hydroxide required to neutralize the acids in one gram of fuel, measured by ASTM D664 or IP 575.
Total Activity X75. IMDG Code, Classes, Packing and Segregation
Sum of radioactivity of all radionuclides in a package, basis for Class 7 categorization.
Total Alkalinity (TA) D1. Physical and chemical oceanography and marine meteorology
Excess of proton acceptors over proton donors in seawater.
Total Allowable Catch (TAC) X10. Marine Biology, Fisheries and Oceanography
Maximum quantity of a stock that may be caught in a defined period.
Total Anac Marine X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring
TotalEnergies marine lube oil analysis programme offering global laboratory network and online trending.
Total Calculated Volume (TCV) X5. Marine Surveying and Inspection
GSV plus free water in petroleum quantity calculations.
Total Carbon Footprint D6. Decarbonization, emissions and alternative fuels
Full carbon emissions associated with a voyage or company.
Total catch (centrifuge) B2. Marine Engineering
Sludge mass per processed feed in separator.
Total Catch Quota (RFMO) X87. Fishing Vessels and Fisheries Management
Aggregate limit set by an RFMO for a stock under its mandate.
Total Constructive Loss X13. Marine Salvage and Wreck Removal
Synonym for constructive total loss in salvage and underwriting.
Total correction (altitude) X16. Nautical Science, Navigation and COLREGs
Combined altitude corrections for a celestial body.
Total Crew Cost (TCC) X154. Maritime Welfare, Seafarer Charities, and MLC Rights
Wage framework expressing all seafarer-related costs as a total per crew member.
Total Discharge X63. Marine Auxiliary Machinery and Pumps
Full empty-bowl cleaning cycle of a centrifugal separator.
Total Energies X134. LNG and LPG Carrier Operators and Containment Systems
French oil major and LNG portfolio player, charterer of fleet including Jules Verne and other modern LNGCs.
Total Energies Vetting X150. Tanker Vetting: OCIMF SIRE, CDI, RightShip, and TMSA
The French integrated major's marine assurance function in La Defense screening crude, product, LNG, and chemicals.
Total existent sediment X47. Marine Fuel Quality and ISO 8217
Sediment measured by ISO 10307-1 without aging.
Total Hazardous Material Survey X50. Ship Recycling, Demolition and Hong Kong Convention
The comprehensive inventory of all regulated substances aboard, distinct from the IHM Part I, II, and III breakdown.
Total head pump X56. LNG/LPG Carriers and IGC Code
Cargo pump rated by total developed head used during discharge to the terminal.
Total loss C2. Ship operations, crewing and technical management
Actual or constructive total loss for insurance purposes.
Total Loss Container X83. ISO Container Manufacturing and Leasing
Container deemed beyond economic repair and removed from the active fleet.
Total loss criterion X163. Marine Accident Investigation Agencies and Landmark Inquiries
Casualty Investigation Code criterion for the very serious marine casualty category based on the total loss of the ship.
Total Loss Only (TLO) X4. Marine Insurance, P&I and Claims
cover responding only to actual or constructive total loss.
Total Loss Survey X43. Marine Surveying and Warranty Surveying
An attendance to confirm and document a constructive or actual total loss following a major casualty for insurance purposes.
Total Lubmarine X61. Marine Lubricants and Cylinder Oils
Marine lubricants division of TotalEnergies that markets the Talusia, Aurelia, and Disola product ranges.
Total Maximum Daily Load (TMDL) D3. Marine environmental science, pollution and conservation
US regulatory limit on pollutant load to a water body.
Total Mortality (Z) D4. Fisheries, aquaculture, blue economy and marine resources
Sum of natural and fishing mortality.
Total Observed Volume (TOV) X5. Marine Surveying and Inspection
Total volume in tank at observed temperature.
Total potential sediment (TSP) X47. Marine Fuel Quality and ISO 8217
Combination of existent and accelerated sediment, used historically; superseded operationally by TSA.
Total productive maintenance X59. Offshore Wind O&M, CTVs and SOVs
Reliability philosophy emphasizing involvement of operators in maintenance and continuous improvement.
Total Propagated Uncertainty X73. Marine Hydrography, Charting and ENC
TPU, the combined horizontal and vertical uncertainty assigned to each sounding under S-44.
Total quality plan X58. Shipbuilding Yards and Construction
Yard's overall quality assurance program covering production and inspection.
Total Recovery Mass X28. Ship Recycling and End-of-Life
Mass of materials extracted and weighed during dismantling.
Total Residual Oxidant (TRO) X18. Ballast Water, Biofouling and Antifouling
Concentration of oxidizing species in treated water; controlled to meet discharge limits.
Total Resistance X54. Naval Architecture Software and IACS Rules
Sum of frictional, wave-making, and appendage resistance computed for ship powering.
Total resistance RT X162. Naval Architecture, Stability, Resistance, and Structural Design
Sum of frictional, viscous-pressure, wave-making, air, and appendage components acting opposite to motion.
Total Return Swap X49. Ship Finance, Leasing and Maritime Capital Markets
Derivative referencing a bond or loan, used by some credit investors.
Total Sea Level (TSL) D5. Coastal processes, sea-level, cryosphere and ocean observation science
Sum of tide, surge, and mean sea level.
Total sediment accelerated (TSA) X47. Marine Fuel Quality and ISO 8217
Sediment measured after thermal aging per ISO 10307-2 Procedure A, capped at 0.10 percent mass in ISO 8217 RM grades.
Total Sediment Aged X115. Marine Bunker and Cargo Surveying
Sediment measurement after thermal aging of residual fuel per ISO 10307-2, indicating storage stability.
Total Sediment Load D2. Hydrography, tides, waves, bathymetry and marine geology
Sum of bed load and suspended load.
Total Sediment Potential X115. Marine Bunker and Cargo Surveying
Sediment measurement on accelerated aging samples, used as a stability indicator in residual fuel testing.
Total sediment, aged (TSA) X2. Marine Bunker Fuels, Lubricants and Bunkering Operations
Sediment after thermal aging per ISO 10307-2.
Total sediment, potential (TSP) X2. Marine Bunker Fuels, Lubricants and Bunkering Operations
Sediment after accelerated aging per ISO 10307-2 Procedure A.
Total turn time X15. Ports, Terminals and Stevedoring
gate-in to gate-out duration for a truck.
TotalEnergies X42. Offshore Wind Installation and Cable Lay
French energy major with offshore wind interests including Seagreen with SSE, Eolmed floating, Erebus floating, and US Atlantic leases.
TotalEnergies Marine Fuels X72. Bunkering Hubs and Bunker Suppliers
Global marine fuels business of TotalEnergies with desks in Singapore, Rotterdam, Fujairah, Houston, and Marseille.
TotalEnergies Singapore Bunker X72. Bunkering Hubs and Bunker Suppliers
Singapore office of TotalEnergies Marine Fuels with MPA license.
TotalEnergies Vetting X40. Tanker Vetting, SIRE and VIQ
The vessel screening function of TotalEnergies SE, formerly Total S.A., a founding OCIMF member.
TOTSA Trading Vetting X150. Tanker Vetting: OCIMF SIRE, CDI, RightShip, and TMSA
TotalEnergies Trading SA's specific vetting interface for its trading desk fixtures.
Touax Group X83. ISO Container Manufacturing and Leasing
French container, modular building, and rail freight lessor headquartered near Paris.
Touch-up X45. Marine Paints, Coatings and Antifouling
Local repair coating applied to damage or holidays before service.
Touch-up paint X165. Marine Coatings, Antifouling, and Hull Husbandry
Coating applied to localized damage in service, normally compatible with the underlying system.
Touchdown monitoring X122. Submarine Cable Laying, Repair Vessels and Operators
ROV-assisted observation of cable contact with seabed during deepwater lay to verify slack control.
Touchdown Monitoring System (TDMS) X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines
ROV-based system that continuously monitors pipeline touchdown during S-lay installation.
Touchless Faucet X41. Cruise Ship Public Health and VSP/USPH
Hands-free fixture at handwash sinks reducing recontamination after handwashing.
Toulon X39. Pre-1900 Maritime History
French Mediterranean naval port and arsenal developed under Vauban from the 1670s.
Tourism Carrying Capacity D3. Marine environmental science, pollution and conservation
Maximum tourist load a coastal ecosystem can sustain.
Tournament Fishing D4. Fisheries, aquaculture, blue economy and marine resources
Regulated recreational fishing competitions.
Tourniquet (CAT) X36. Shipboard Medical, Telemedicine and Seafarer Health
Combat Application Tourniquet for severe extremity hemorrhage.
TOVAL Skimmer X126. Marine Oil Spill Response and OPRC Regimes
Generic abbreviation for various lipophilic vacuum skimmer.
Tow Approval Survey X43. Marine Surveying and Warranty Surveying
A marine warranty attendance issuing the certificate of approval to tow following inspection and document review.
Tow Bar Heavy Haul X104. Project Cargo Forwarders and Heavy Transport
Rigid drawbar between tractor and trailer used in heavy combinations.
Tow Bridle X30. Tug Operations and Harbour Towage
Two-leg towing connection to the tow.
Tow Hook X79. Tugs and Towage Industry
Quick-release hook used on conventional tugs in place of a winch for the working line.
Tow Knee X33. Inland Navigation and Barge Operations
Padded steel projection on the bow of a US push boat for engaging barges.
Tow Light X103. US Inland Waterway Towing and Barge
A navigation light displayed by a tow to indicate its dimensions and arrangement.
Tow Line X173. Mooring, Anchoring, OCIMF MEG4, and Equipment Numeral
Heavy rope or wire used to tow a vessel, distinct from mooring lines in design and certification.
Tow Master X14. Offshore Oil and Gas Marine Operations
Person in charge during rig moves and ocean tows.
Tow path X175. Port Engineering, Dredging, Breakwaters, and Quays
Marine corridor along which a tug and tow safely navigate to a port or berth.
Tow Size X103. US Inland Waterway Towing and Barge
The number and arrangement of barges in a tow, often expressed as rows by columns.
Tow Wire X103. US Inland Waterway Towing and Barge
A wire used to make up or extend a tow.
Tow Wire Tension Monitoring X60. Marine Salvage and Wreck Removal
Real time measurement of tow line tension to detect surge or imminent failure.
Towage C4. Ports, terminals and coastal/marine civil engineering
Provision of tugs for harbour and ocean tow.
Towage and Pilotage X159. Marine Pilotage, Pilot Districts, and Pilots' Associations
Combined service category in some ports where the towage operator employs pilots and provides an integrated berthing service.
Towage Contract A5. Maritime Law, private and commercial
BIMCO TOWHIRE/TOWCON or industry-standard offshore towage contracts.
Towage Contract Reference X86. Port Agency, Husbandry and Disbursement
Reference to towage contracts under which tugs are provided.
Towage Distinguished from Salvage X99. Marine Salvage Awards and SCOPIC
Distinction between ordinary towage services and salvage services rendered to a vessel in danger.
Towage Liability X4. Marine Insurance, P&I and Claims
P&I cover for liability arising under customary or contractual towage.
Towage Plan X79. Tugs and Towage Industry
Documented arrangement of tugs, lines, and procedures for a specific ship movement.
Towage Salvage X99. Marine Salvage Awards and SCOPIC
Salvage services that take the form of emergency towage of a disabled vessel.
Towage Survey X43. Marine Surveying and Warranty Surveying
A general term for warranty attendance covering the planning and execution of marine towage operations.
Towage, block X58. Shipbuilding Yards and Construction
Movement of large blocks between yards or hardstands using barges or pontoons.
Towboat X30. Tug Operations and Harbour Towage
US term for an inland vessel pushing barges.
TOWCON 2008 X13. Marine Salvage and Wreck Removal
BIMCO international ocean towage agreement, lump sum.
TOWCON 2021 X13. Marine Salvage and Wreck Removal
Updated BIMCO international ocean towage agreement, lump sum.
Towed array minehunting sonar X77. Naval Mine Warfare and Mine Countermeasures
A class of sonars deployed astern of a tow body to keep the sensor below thermal layers and avoid hull noise.
Towed-Array Sonar E2. Naval, defence and maritime law enforcement
Passive sonar streamed astern of ship/submarine.
Tower X105. Offshore Wind Farm Installation and Vessels
Tubular steel structure mounted on the foundation that supports the nacelle and rotor at hub height.
Tower bolt X59. Offshore Wind O&M, CTVs and SOVs
High strength bolt joining tower flanges, periodically retorqued and inspected.
Tower Bridge Engine Room Heritage F2. Maritime Culture, Heritage, Archaeology, Art and Museums
Adjacent to Pool of London maritime history.
Tower crane X15. Ports, Terminals and Stevedoring
alternative to STS in some breakbulk yards.
Tower Crane Project X104. Project Cargo Forwarders and Heavy Transport
Tall tower crane used for high lifts on industrial and infrastructure sites.
Tower internal lift X59. Offshore Wind O&M, CTVs and SOVs
Service elevator inside the turbine tower used by technicians and small cargo.
Tower Lashing X9. Cargo Securing, Lashing and Stability Vocabulary
Lashing pattern for tall slender cargo.
Tower section X42. Offshore Wind Installation and Cable Lay
Tubular steel cylinder section assembled to form the wind turbine tower.
Tower Section Wind X104. Project Cargo Forwarders and Heavy Transport
Steel tower segment for a wind turbine, typically 30 to 35 meters per section.
Tower's Liability X53. Marine Insurance, P&I and Hull Clauses
Liability of a tug for damage to its tow, often covered by P&I or tower's liability extensions.
TOWHIRE 2008 X13. Marine Salvage and Wreck Removal
BIMCO international ocean towage agreement, daily hire.
TOWHIRE 2021 X30. Tug Operations and Harbour Towage
Revised BIMCO daily hire towage agreement.
Towhook 4000 X30. Tug Operations and Harbour Towage
Mampaey quick-release towing hook commonly used on modern tugs.
Towing (ice) X27. Polar Code, Ice Navigation and Polar Operations
Tow-notch on icebreaker stern allows close coupling of escorted ships in heavy ice.
Towing Bridle X79. Tugs and Towage Industry
Y-shaped assembly connecting a single towline to two attachment points on the towed object.
Towing convoy (delivery) B4. Shipbuilding, Materials, Sea Trials, Retrofits and Recycling
Wet/dry tow for newbuild delivery.
Towing Hawser X103. US Inland Waterway Towing and Barge
A heavy synthetic or wire line used in coastwise or assist towage.
Towing Hook X30. Tug Operations and Harbour Towage
Deck fitting securing the working end of the towline on a conventional tug.
Towing Officer's Assessment Record X103. US Inland Waterway Towing and Barge
See TOAR.
Towing Pin X30. Tug Operations and Harbour Towage
Retractable pin used to guide the towline on stern-drive tugs.
Towing Staple X30. Tug Operations and Harbour Towage
Closed fairlead at the tow point through which the line is led.
Towing tank B1. Naval Architecture
Long basin for resistance and self-propulsion tests.
Towing Vessel Inspection Bureau X103. US Inland Waterway Towing and Barge
A USCG-recognized third-party organization performing inspections under Subchapter M.
Towline X3. Ship Handling, Seamanship and Deck Vocabulary
Heavy rope used in towing.
Towline (emergency) X170. SOLAS 1974 Convention: Chapter-by-Chapter Glossary
Pre-rigged towing arrangement on tankers of 20,000 DWT and above per SOLAS II-1/3-4.
Toxic by Inhalation (TIH) X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers
A subset of Class 6.1 substances classified by inhalation toxicity criteria in 2.6.2.2.4 and assigned hazard zones.
Toxic Inventory Reporting X28. Ship Recycling and End-of-Life
Yard-level reporting of hazardous waste flows to competent authority.
Toxic Liquid Inorganic NOS X75. IMDG Code, Classes, Packing and Segregation
UN 3287, Class 6.1.
Toxic Liquid Organic NOS X75. IMDG Code, Classes, Packing and Segregation
UN 2810, Class 6.1.
Toxic Liquid Organic NOS UN 2810 X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers
A Class 6.1 generic entry, packing group I, II, or III based on LD50 and LC50 data with technical name.
Toxic Solid Inorganic NOS X75. IMDG Code, Classes, Packing and Segregation
UN 3288, Class 6.1.
Toxic Solid Organic NOS X75. IMDG Code, Classes, Packing and Segregation
UN 2811, Class 6.1.
Toxic Substances Control Act (TSCA) X118. Ship Recycling Yards, Beaches and Regulation
US law restricting PCB import; affects US-flag vessels routed to non-US recyclers.
Toxicity (Ammonia Fuel) D6. Decarbonization, emissions and alternative fuels
Safety concern requiring strict mitigation for ammonia bunkering.
Toxin Hazard X41. Cruise Ship Public Health and VSP/USPH
Food safety hazard arising from chemicals or natural toxins such as ciguatera, requiring sourcing controls.
Toyama National College of Maritime Technology X121. Maritime Education, Academies and Universities
Japanese KOSEN with maritime engineering specialization.