Please enter a keyword to search or click a letter below to browse the list of abbreviations and definitions through our glossary index.


Search Results for D
  • Diver 
  • D or DPT 
  • D&H 
    Dangerous and Hazardous (cargo) 
  • d.p. 
    Direct port 
  • D/A 
    Disbursement Account 
  • D/C 
    Deviation clause; (in) direct continuation 
  • D/E 
  • D/P 
    Discharging Port, Documents against payment 
  • D/R/D 
    Dunnage, removal and disposal 
  • DA or D/A 
    Disbursement Account 
  • DAA 
    Discharge always afloat 
  • DAF 
    Previous terms eliminated from Incoterms 2000 DAF – Delivered At Frontier (named place of delivery) This term can be used when the goods are transported by rail and road. The seller pays for transportation to the named place of delivery at the frontier. T
  • DAF (Delivered At Frontier) (...Named Place) 
    A Term of Sale which means the sell- ers fulfill their obligation to deliver when the goods have been made available, cleared for export, at the named point and placed at the frontier, but before the customs Terms of Sale border of the adjoining country. 
  • Damages for Detention 
    Penalty if cargo is not ready when 
    Damages for Detention 
  • DAP 
    Diamonium Phosphate 
  • DAP 
    Delivered at Place (named place of destination) Seller pays for carriage to the named place, except for costs related to import clearance, and assumes all risks prior to the point that the goods are ready for unloading by the buyer. Incoterms 2010 
  • DAP or DAPS 
    Days all Purposes (Total days for loading & discharging) 
  • DAT 
    Delivered at Terminal (named terminal at port or place of destination) Seller pays for carriage to the terminal, except for costs related to import clearance, and assumes all risks up to the point that the goods are unloaded at the terminal. Incoterms 201
  • Day 
    DAY shall mean a period of twenty-four (24) consecutive hours. Any part of a Day shall be counted pro-rata. 
  • DB 
    Double Bottom 
  • DBA 
    Doing Business As: A legal term for conducting business under a registered name. 
  • DBB 
    Deals, battens and boards 
  • DBE 
    Despatch payable both ends 
    Despatch (payable) both ends, all time saved 
    Despatch (payable) both ends, working time saved 
  • DBL 
    DouBLe SKINned 
  • DBT s 
    Double Bottom Tank 
  • DC 
    Discharge Capacity 
  • DD 
    Dry Dock or Daily Discharge 
  • DDC 
    Destination Delivery Charge: A charge, based on container size, that is applied in many tariffs to cargo. This charge is considered accessorial and is added to the base ocean freight. This charge covers crane lifts off the vessel, drayage of the container
  • DDC 
    Deck Decompression Chamber 
  • DDO 
    Despatch discharging only 
  • DDP 
    Delivered Duty Paid (named place of destination) Seller is responsible for delivering the goods to the named place in the country of the buyer, and pays all costs in bringing the goods to the destination including import duties and taxes. This term places
  • DDP (Delivered Duty paid) (...Named Port of Destination) 
    “Delivered Duty Paid” means that the seller fulfills his obligation to deliver when the goods have been made avail- able at the named place in the country of importation. The seller has to bear the risks and costs, including duties, taxes and other charge
  • DDP/(U) 
    Delivered Duty Paid (Unpaid) 
  • DDU 
    Previous terms eliminated from Incoterms 2000 Delivered Duty Unpaid (named place of destination) This term means that the seller delivers the goods to the buyer to the named place of destination in the contract of sale. The goods are not cleared for impor
  • DDU (Delivered Duty Unpaid) (...Named Port of Destination) 
    A Term of Sale where the seller fulfills his obligation to deliver when the goods have been made available at the named place in the country of importation. The seller has to bear the costs and risks involved in bringing the goods thereto (excluding dutie
  • DE 
    Design and Equipment 
  • DE 
    Deck (OCIMF acronym) 
  • De-Slopping 
    Whereby a vessel discharges a quantity of slops to a dedicated slop receiving vessel within Port Limits or at a safe anchorage. 
  • De-Storing Operations 
    Whereby a vessel lands a quantity of items for the purpose of repair or storage ashore, or crew effects for personnel assigned to the vessel. 
  • DEA 
    Diethanolamine. See ethanolamine 
  • Deadhead 
    One leg of a move without a paying cargo load.Usually refers to repositioning an empty piece of equipment 
  • Deadweight Cargo 
    A long ton of cargo that can be stowed in less than 40 cubic feet. 
  • Deadweight tonnage (DWT) 
    The standard measure of ships' carrying capacity. The trade usually abbreviates this term to speak simply of tankers "deadweight." This specification reports total weight, usually in long tons, of fresh water, stores, bunkers, and cargo a vessel can carry
  • Debottlenecking 
    Increasing production capacity of existing facilities through the modification of existing equipment to remove throughput restrictions. Debottlenecking generally increases capacity for a fraction of the cost of building new facilities. 
  • DEC 
    De-ratting exemption certificate 
  • Deck Barge 
    Deck barges are flat barges that are able to transport unusually bulky cargoes. 
  • Deck Cargo Pontoon, non propelled 
    A non propelled pontoon for the carriage of general deck cargoes 
  • Deck Cargo Pontoon, semi submersible 
    A non propelled semi submersible pontoon for the carriage of general deck cargoes 
  • Deck Cargo Ship 
    A vessel arranged for carrying unitised cargo on deck only. Access may be by use of a ro-ro ramp 
  • Deck Officer 
    Officer responsible for the safe navigation of a ship, as well as communications and safe loading, carriage and discharging of cargo and ship stability. 
  • Decomposition products 
    Products of a chemical or thermal break-down of a substance. 
  • Deconsolidation Point 
    Place where loose or other non–containerized cargo is ungrouped for delivery. 
  • Decontamination 
    The removal of dangerous goods from personnel and equipment to the extent necessary to prevent potential adverse health effects. Always avoid direct or indirect contact with dangerous goods; however, if contact occurs, personnel should be decontaminated a
  • Deep Draft 
    The "deep draft" of a vessel is measured from the surface of the water to the deepest part of the hull below the surface. 
  • DEF 
  • Defatting 
    The removal of natural oils from the skin by a fat-dissolving solvent 
  • Deficit Weight 
    The weight by which a shipment is less than the minimum weight. 
  • DEG 
    Diethylene Glycol 
  • Degaussing Vessel 
    A naval vessel that can neutralise the magnetic field of a vessel. Used in magnetic mine detection 
  • DEGBE 
    Diethylene Glycol Butyl Ether 
    Diethylene Glycol Butyl Ether Acetate 
    Diethylene Glycol Monobutyl Ether 
    Diethylene Blycol Monomethyl Ether 
  • Degummed Oil 
    The product resulting from washing crude vegetable oil with water and/or steam for a specified period of time and then centrifuging the oil-and-water mixture to remove the phosphatides etc. The US Bureau of the Census requires crushers degumming crude soy
  • Degumming 
    All fats and oils contain small quantities of various non-glyceride entities. Included in this group are complex organo-phosphorus compounds referred to as phosphatides or more usually as gums. They are removed during processing by a variety of treatments
  • Dehydrogenation 
    An organic chemical reaction in which a pair of hydrogen atoms are removed from a molecule. 
  • DEL or DELY 
  • DEL or DLT 
  • Delayed coker 
    A coking unit (coker) which provides a drum where heated molecules crack and coke forms. 
  • Delayed lung injury 
    A condition in which there is a delay (usually hours or a few days) between acute exposure to a chemical and the subsequent development of lung injury. 
  • Delivery Instructions 
    Order to pick up goods at a named place and deliver them to a pier. Usually issued by exporter to trucker but may apply to a railroad, which completes delivery by land. Use is limited to a few major U.S. ports. Also known as shipping delivery order. 
  • DEM 
    Demurrage (Quay Rent) 
    Demurrage and dispatch 
    Demurrage/Despatch money. (Under vessel chartering terms, the amount to be paid if the ship is loading/discharging slower/faster than foreseen.) 
  • Demurrage 
    The cost of delaying a ship. Busy channels, occupied berths, commercial considerations, lack of shore tankage, pumping limitations, and a host of other eventualities related to how or where a charterer uses a vessel can prevent it from loading or unloadin
  • Demurrage 
    (Quay Rent). Money paid by the shipper for the occupying port space beyond a specified _Free Time period. 
  • Density 
    The mass of a substance per unit volume. The density of a substance is usually compared to water, which has a density of 1. Substances which float on water have densities less than 1; substances which sink have densities greater than 1 
  • Density 
    A descripton of oil by some measurement of its volume to weight ratio. The industry usually relies on two expressions of oil's volume-weight relationship-specific gravity and API degrees. The larger a specific gravity number and the smaller an API number,
  • Density (liter weight in air) 
    Density is the mass of a unit volume of a substance. The density of an oil or fat is usually measured by determining its specific gravity. 
  • Density / Specific Gravity 
    Tank cleaning: Is the ratio of the mass of a volume of a product to the mass of an equal volume of freshwater (1.0). For a product with limited or no solubility in water the specific gravity indicates whether the product will float on water or sink. 
  • Deodorization 
    Deodorisation is the removal of those trace components, present in all edible oils, which give rise to odours and flavours. Accomplished by the application of heat, steam and vacuum, deodorisation should be the final stage of treatment before packing or d
  • Depot, Container 
    Container freight station or a designated area where empty containers can be picked up or dropped off. 
  • Depth 
    The depth to which a ship is immersed in water. 
  • DEQ 
    Previous terms eliminated from Incoterms 2000 DEQ – Delivered Ex Quay (named port of delivery) This is similar to DES, but the passing of risk does not occur until the goods have been unloaded at the port of destination. 
  • DEQ (Delivered Ex Quay, [Duty Paid]) (...Named Port of Destination) 
    A Term of Sale which means the DDU term has been fulfilled when the goods have been available to the buyer on the quay (wharf) at the named port of destination, cleared for importa- tion. The seller has to bear all risks and costs including duties, taxes
  • DER or DR or DRK or DRRKS 
  • Dermatitis 
    An inflammation of the skin 
  • DES 
  • DES 
    Previous terms eliminated from Incoterms 2000 DES – Delivered Ex Ship (named port of delivery) Where goods are delivered ex ship, the passing of risk does not occur until the ship has arrived at the named port of destination and the goods made available f
  • DES (Delivered Ex Ship) (...Named Port of Destination) 
    A Term of Sale where the seller fulfills his/her obligation to deliver when the goods have been made available to the buyer on board the ship, uncleared for import at the named port of destination. The seller has to bear all the costs and risks involved i
  • Desalination Pontoon, non propelled 
    A non propelled pontoon for the provision of desalination facilities 
  • Design Draft 
    The design draft of a vessel is the maximum draft a vessel could potentially reach fully loaded whereas the operating draft is the typical draft that is employed since it is rare that vessels will sail at their maximum design draft. 
  • DESP 
  • Despatch on all time saved 
    DESPATCH ON ALL TIME SAVED shall mean that Despatch Money shall be payable for the time from the completion of loading or discharging to the expiry of the Laytime including periods excepted from the Laytime. 
  • Despatch on all workding time saved or Despatch on all time saved 
    DESPATCH ON ALL WORKING TIME SAVED or ON ALL LAYTIME SAVED shall mean that Despatch Money shall be payable for the time from the completion of loading or discharging until the expiry of the Laytime excluding any periods excepted from the Laytime. 
  • Despatch or Despatch Money 
    DESPATCH MONEY or DESPATCH shall mean an agreed amount payable by the owner if the Vessel completes loading or discharging before the Laytime has expired. 
  • Destination 
    – The place to which a shipment is consigned. – The place where carrier actually turns over cargo to consignee or his agent. 
  • Destination Control Statements 
    Various statements that the U.S. government requires to be displayed on export shipments. The statements specify the authorized destinations. 
  • Destroyer 
    A combat vessel, which is small, fast, highly manoeuverable. Armed with guns, torpedoes, depth charges, and guided missiles 
  • DET 
  • DET Detention 
    (See DAMFORDET) 
  • Det Norske Veritas 
    A Norwegian classification society which certifies seagoing vessels for compliance to standardized rules regarding construction and maintenance. 
  • DETA 
    Diethylenetriamine. See ethyleneamines 
  • Detention 
    A penalty charge against shippers or consignees for delaying carrier’s equipment beyond allowed time. Demurrage applies to cargo; detention applies to equipment. See Per Diem. 
  • Detergent 
    In simple terms a detergent is an aid to separation whether it be the separation of soil from a piece of cloth or the separation of olein from stearin in a fractionation plant. Alternatively classified as surface active agents, they work by lowering surfa
  • Deterioration 
    Chemically, oils and fats are quite stable, neutral substances. However, during storage and transport two types of deterioration can occur - a. Oxidation by atmospheric oxygen. This reaction is accelerated by high temperature, strong light and the presenc
  • DETS or DTLS 
  • Devanning 
    The unloading of a container or cargo van. 
  • Developmental toxicity 
    Capable of causing abnormalities in the implantation of the developing conceptus and/or causing structural or injury to the foetus. 
  • DF 
    Dead Freight or Direction Finder 
  • DF Car 
    Damage–Free Car. Boxcars equipped with special bracing material. 
  • DFD 
    Demurrage, free dispatch 
  • DFDE propulsion 
    DFDE propulsion is a relatively new technology for LNG carriers. Utilising electrical generators to drive the propeller, DFDE vessels are more fuel efficient and have lower carbon emissions compared to the conventional steam propelled vessels. The DFDE pr
  • DFT or DRFT 
    Draft (also spelt, draught) 
  • DH 
    Double hull 
  • DHD 
    Demurrage, half dispatch; Despatch money payable at half demurrage rate 
    Dispatch Half Demurrage on All Time Saved Both Ends 
    Demurrage Half Dispatch on All Time Saved Both Ends 
    Demurrage Half Dispatch on Laytime Saved Both Ends 
    Dispatch Half Demurrage on Working Time Saved Both Ends 
    Demurrage Half Dispatch on Working TIme Saved Both Ends 
  • DIA 
  • Dibasic Acids 
    Refers to acids with two carboxyl groups, of which the most common have the general structure HOOC(CH2)nCOOH. They include (value of n in parenthesis): oxalic* (0), malonic* (1), succinic* (2), glutaric* (3), adipic* (4), suberic* (6), azelaic (7), sebaci
  • Diethylene glycol 
    Diethylene glycol is a colorless liquid used as a solvent and in the manufacture of unsaturated polyester resins, polyurethanes and plasticizers. 
  • Diethylene glycol ether acetates 
    Glycol ethers are manufactured from either propylene oxide or ethylene oxide reacted with an alcohol. Glycol ethers and glycol ethers acetates are both hydrophilic (soluble in water) and lipophilic (soluble in oils). They are excellent co-solvents, enabli
  • Diethylene glycol ethers 
    Glycol ethers are manufactured from either propylene oxide or ethylene oxide reacted with an alcohol. Glycol ethers and glycol ethers acetates are both hydrophilic (soluble in water) and lipophilic (soluble in oils). They are excellent co-solvents, enabli
  • Differential 
    An amount added or deducted from base rate to make a rate to or from some other point or via an- other route. 
  • Digylceride 
    The ester resulting from the chemical combination of glycerol and two fatty acids. 
  • Dilation/Dilatometry 
    When an oil or fat is heated it expands and the expansion is called dilation. Dilation is the change in volume with varying temperature. The technique of observation is termed dilatometry. From the dilation observed on warming a solidified fat to a define
  • DIM or DIMS 
  • Dipropylene glycol 
    One member of the propylene glycols family, the most important of which is monopropylene glycol. Dipropylene glycol is used primarily as an industrial intermediate, but is also used as a substance in consumer products, and as an ingredient in pesticidal f
  • Dipropylene glycol ether acetate 
    Glycol ethers are manufactured from either propylene oxide or ethylene oxide reacted with an alcohol. Glycol ethers and glycol ethers acetates are both hydrophilic (soluble in water) and lipophilic (soluble in oils). They are excellent co-solvents, enabli
  • Dipropylene glycol ethers 
    Glycol ethers are manufactured from either propylene oxide or ethylene oxide reacted with an alcohol. Glycol ethers and glycol ethers acetates are both hydrophilic (soluble in water) and lipophilic (soluble in oils). They are excellent co-solvents, enabli
  • DIR 
  • DirectENC 
    DirectENC or dENC is a chart format which is specific to ECDIS or ECS systems that use the SevenCs EC2007 ECDIS Kernel AND that have been enabled by their manufacturer for SENC data. 
  • DIRTY 
    Crude black oil 
  • Dirty Tanker 
    MR 25-60 Panamax 60-80  Aframax 80-120 Suezmax 120-180  VLCC 180-350  ULCC 350 and up 
  • DIS 
    Danish International Ship Register 
  • Disbursements 
    Expenses incurred in a port against the general expenses of the vessel these include wages , loading and /or discharging bunkers, water, provisions, customs clearance, port and quay dues, pilotage, tugs and other pertinent costs. 
  • DISCH 
  • Discrepancy Letter of Credit 
    When documents presented do not conform to the requirements of the letter of credit (L/C), it is referred to as a “discrepancy.” Banks will not process L/C’s which have discrepancies. They will refer the situation back to the buyer and/or seller and await
  • DISP 
  • Dispatch 
    See Despatch. 
  • Displacement 
    The weight, in tons of 2,240 pounds, of the vessel and its contents. Calculated by dividing the volume of water displaced in cubic feet by 35, the average density of sea water. 
  • Disponent Owner 
    Company that control the commercial operation of a vessel under a bareboat or Time charter party. The person who by reason of a contract or charter party assumes responsibility for a vessel as if he were the owner. 
    Discharge port 
  • Distillate 
    The liquid obtained through distillation. 
  • Distillation 
    Process in oil refining where heat is used to separate the various components of crude oil. Because each component has a different boiling point, gradual heating allows them to be separated through evaporation and collection of the vapors. 
  • Distillation curve 
    The boiling temperature distribution of a material's component molecules. Tests report this characteristic as temperature at which various percentages of a sample have boiled or as the percentages which have boiled at various temperatures. 
  • Distillation unit 
    separation equipment that heats a mixture and divides its ingredients according to the temperature where they boil. 
  • Distiller 
    see DISTILLATION UNIT. A term most often used as shorthand for "crude oil distillation unit." 
  • Distributors 
    Inland wholesalers. 
  • Diversion 
    A change made either in the route of a shipment in transit (see Reconsignment) or of the entire ship. 
  • Diving Support Platform, semi submersible 
    A semi submersible diving support platform 
  • Diving Support Vessel 
    A vessel primarily equipped with decompression chambers for air dive operation. Does not include vessels which can only operate submersibles 
  • Diving Vessel, Naval Auxiliary 
    A naval auxiliary vessel designed and fitted with equipment to support diver operations. May have cranes for construction/maintenance work. 
  • Division 
    Carriers’ practice of dividing revenue received from rates where joint hauls are involved. This is usually according to agreed formulae. 
  • DK 
  • DLOP 
    Dropping last outward pilot 
  • DLOSP 
    Dropping last outward sea pilot 
  • DLY 
    Discountless and Non-Returnable Cargo and/or Ship Lost or Not Lost. (ie for the payment of voyage freight in the charter party) 
    Discountless and Non-Returnable Ship and/or Cargo Lost or Not Lost 
  • DNV 
    Det Norske Veritas (Norwegian Class Society) 
  • DO 
    Diesel Oil or Delivery Order 
  • DOC 
    Document of compliance (ISM) 
  • Dock 
    – For ships, a cargo handling area parallel to the shoreline where a vessel normally ties up. – For land transportation, a loading or unloading platform at an industrial location or carrier terminal. 
  • Dock Gate 
    A dock gate 
  • Dock Receipt 
    A form used to acknowledge receipt of cargo and often serves as basis for preparation of the ocean bill of lading. 
  • Dockage 
    Refers to the charge assessed against the vessel for berthing at the facility or for morring to a vessel so berthed. 
  • Docket 
    Present a rate proposal to a conference meeting for adoption as a conference group rate. 
  • Doctor test 
    An indicator to detect the presence of significant amounts of mercaptan sulfur in light hydrocarbon mixture. Materials passing this test carry the designation, "Doctor negative." Doctor negative stocks have sufficiently low mercaptan levels for use in mot
  • Documents Against Acceptance (D/A) 
    Instructions given by a shipper to a bank indicating that documents transferring title to goods should be delivered to the buyer only upon the buyer’s acceptance of the attached draft. 
  • Documents Against Payment (D/P) 
    An indication on a draft that the documents attached are to be released to the drawee only on pay- ment. 
  • DOHP 
    Dropping outward harbor pilot 
  • Dolly 
    A set of wheels that support the front of a container; used when the automotive unit is disconnected. 
  • DOLSP 
    Dropping Off Last Sea Pilot (Norway) 
  • Door–to–Door 
    Through transportation of a container and its contents from consignor to consignee. Also known as House to House. Not necessarily a through rate. 
  • DOP 
    Dropping outward pilot 
  • DOS 
    Declaration of Security 
  • DOS 
    Declaration of Security 
  • DOSP 
    Dropping outward sea pilot 
  • DOT 
    Department of Transportation 
  • Double bond 
    The chemical bond between two carbon atoms can involve one, two or three pairs of electrons, producing a single (C-C), double (C=C) or triple (C≡C) bond. While the extra pairs of electrons give the bond more energy they also make it more chemically reacti
  • Downstream 
    A relative term, which indicates greater removal from origins than some point of reference. For example, a petrochemical plant which cracks naphtha lies downstream from a refinery. Money made by marketing products constitutes downstream profits compared t
  • DP 
    Dynamic Positioning - DP allows a vessel to remain in the same location, even in harsh weather, through the combined use of rudders, thrusters, propellers, a position reference system and a computer. 
  • DP or DYNPOS 
    Dynamic Positioning 
  • DPA 
    Designated person ashore (ISM) 
  • DPD 
    Discharge port disbursements 
  • DPGEE 
    Dipropylene Glycol Ethyl Ether 
  • DPGME 
    Dipropylene Glycol Methyl Ether 
  • DPK 
    Dual-purpose kerosene. Product suitable for use as burning kerosene and aviation turbine fuel. 
  • DPOR 
    Division of Parks and Outdoor Recreation (ADNR) 
  • DPP 
    Dirty petroleum products 
  • Draft 
    The distance between a ship's keel and waterline. The lowest part of a vessel lies this far below the surface of the water. Every ship's draft changes with the amount of cargo aboard it, its trim and the temperature and salt content of the water in which
  • DRAFT 
    Depth to which a ship is immersed in water. The depth varies according to the design of the ship and will be greater or lesser depending not only on the weight of the ship and everything on board, but also on the density of the water in which the ship is
  • Draft or Draught 
    The draft (or draught) of a vessel is one of the most common pieces of information used in Corps navigation studies and can be defined as the distance between the waterline and the bottom of the ship’s hull (keel) (see Figure A-1). In other words, it is t
    Depth of water from waterline to lowest point of vessel's hull 
  • Draft, Bank 
    An order issued by a seller against a purchaser; directs payment, usually through an intermediary bank. Typical bank drafts are negotiable instruments and are similar in many ways to checks on checking accounts in a bank. 
  • Draft, Clean 
    A draft to which no documents are attached. 
  • Draft, Date 
    A draft that matures on a fixed date, regardless of the time of acceptance. 
  • Draft, Discounted 
    A time draft under a letter of credit that has been accepted and purchased by a bank at a discount. 
  • Draft, Sight 
    A draft payable on demand upon presentation. 
  • Draft, Time 
    A draft that matures at a fixed or determinable time after presentation or acceptance. 
  • DRATE 
    Discharge rate 
  • Drawback 
    A partial refund of an import fee. Refund usually results because goods are re–exported from the country that collected the fee. 
  • Drawee 
    The individual or firm that issues a draft and thus stands to receive payment. 
  • Drayage 
    Charge made for local hauling by dray or truck. Same as Cartage. 
  • DRC 
    Daily running cost 
  • Dredger (unspecified) 
    A vessel equipped to obtain material from the sea bed by an unspecified means. The material may be carried on board, transferred to other vessels, pumped ashore or deposited elsewhere using a spray 
  • Dredging Pontoon, unknown dredging type 
    A non propelled pontoon with an unknown dredging mechanism 
  • Dredging, Inland Waterways 
    A vessel designed for dredging operations. Not designed for operation in open sea 
  • Dressing Down 
    Thin and worn sails were often treated with oil or wax to renew their effectiveness. This was called "dressing down". An officer or sailor who was reprimanded or scolded received a dressing down. 
  • DRFS 
    Destination Rail Freight Station. Same as CFS at destination, except a DRFS is operated by the rail carrier participating in the shipment. 
  • DRFT 
  • DRI 
    Direct reduced iron 
  • Drilling 
    Process of boring a hole into the earth to remove oil and gas. 
  • Drilling Rig, jack up 
    A jack up offshore drilling rig 
  • Drilling Rig, semi submersible 
    A semi submersible offshore drilling rig. 
  • Drilling Ship 
    A vessel primarily equipped for offshore drilling operations. May also be able to obtain cores for research purposes 
  • DRK 
    Derrick Materials of various types, often timber or matting, placed among the cargo for separation, and hence 
  • Drop Point 
    The drop point is an analysis related to the melting point of oils and fats. The sample is solidified in a small cup with a hole. As the cup is warmed and as the fat starts to melt a drop is formed. The drop point is the temperature at which the drop fall
  • DRX 
    Hellenic Drachma (currency) 
  • Dry Cargo 
    Cargo that is not liquid and normally does not require temperature control. 
  • Dry Cargo Barge 
    Dry cargo barges, or hopper barges, transport solid cargo commodities like grain, coal, sugar, sand, gravel, etc. Depending on the cargo, dry cargo barges may be open or covered. For example, sugar would likely be transported in a covered hopper barge, wh
  • Dry chemical 
    A preparation designed for fighting fires involving flammable liquids, pyrophoric substances and electrical equipment. Common types contain sodium bicarbonate or potassium bicarbonate. 
  • Dry–Bulk Container 
    A container constructed to carry grain, powder and other free–flowing solids in bulk. Used in conjunction with a tilt chassis or platform. 
  • Drydock 
    Dock area that is drained of water so a ship can be repaired or serviced below the waterline. Ships are also built in drydocks. 
  • Drying Oils 
    Oils that have the ability to polymerize or "dry" by oxidation after they have been applied to a surface to form tough, adherent, impervious and abrasive resistant film. Their film forming properties are closely related to their degree of unsaturation. Ty
  • DS 
    Double Side 
  • DSC 
    Digital Selective Calling 
  • DSC 
    Dangerous Goods, Solid Cargoes and Containers 
  • DSL 
    Direct Shuttle Loading - Use of two submerged turret loading systems for direct loading of oil, eliminating the need for a storage vessel. 
  • DSRK 
    Deutche-Schiffs-Revision Und-Klassifkation 
  • DSU 
    Delay in Startup Insurance is a policy to protect the seller of a construction project from penalties if the project is not completed on time. See “Liquidated Damages.” 
  • DSV 
    Diving System 
  • DT 
    Deep Tank 
  • Dumping 
    Attempting to import merchandise into a country at a price less than the fair market value, usually through subsidy by exporting country. 
  • Dunnage 
    Protection from damage, for ventilation and, in the case of certain cargoes, to provide space in which the types of a fork lift truck may be inserted. 
  • DUR 
  • Dutch Courage 
    Dates to the 1600s Anglo-Dutch wars and was likely British propaganda claiming that the Dutch troops were so cowardly they wouldn’t fight unless fortified with copious amounts of schnapps. The term has come to mean false courage induced by drink, or the d
  • Dutiable Value 
    The amount on which an Ad Valorem or customs duty is calculated. 
  • DWA 
    Dock water allowance 
  • DWAT (or DWT) 
    Deadweight. Weight of cargo, stores and water, i.e. the difference between lightship and loaded displacement 
  • DWAT or DWT 
    DeadWeight All Told or DeadWeight Tonnage of a vessel. Weight of cargo, stores and water, i.e. the difference between lightship and loaded displacement 
  • DWCC 
    Deadweight cargo capacity 
  • DWCT 
    Deadweight cargo tons 
  • DWOC 
    Decline without counter 
  • DWT 
    Deadweight Tonnage-the carrying capacity of a vessel in tons (most references now show metric tons). It is the difference between the light and loaded displacement (weight of the ship itself vs. ship plus cargo, fuel, stores and water).