A projecting aperture at the end of a tube, pipe etc. serving as an outlet for compressed air. Reduces the demand on the compressor by generating the highest thrust and volume for the lowest possible air consumption.

A solid absorption agent used in deliquescent type dryers.

The last buoy as a boat heads to sea.

A letter of credit that requires the beneficiary to present only a draft or a receipt for specified funds before receiving payment.

An absolute temperature scale. ((

Sort of large pulley with sheave and steel block found on a derrick

Said to weigh.

Unlicensed members of the engine department who attend to a fully automated engine room.

Name given to the lowest deck in a ship.

Type of mobile crane found on a truck.

A writ issued by a court; requires that specific things be done.

A reversible propeller mounted in a tunnel running through the ship/s hull to give movement athwart-ships.

An instrument for measuring, testing, or registering.

Tightly woven cloth used for sails, awnings, covers, dodgers and biminis; slang for sails.

Master of a sea-going vessel. Certificated officer competent and qualified to be master of a sea-going vessel.

Merchant Navy nickname for seaman whose turn of duty it is to keep the mess clean.

A charge for services performed in connection with floating elevators.- Charges assessed for the handling of grain through grain elevators.

A genoa jib. A large jib that overlaps the mast.

Pointed iron implement used in separating the strands of rope in splicing, marling, etc.

After a seam is caulked, to lay over it a narrow piece of canvas and then pour on hot pitch and tar .