Trailer on which shipping containers are carried when moved by road.

The difference in pressure between the opening pressure and reclose pressure of a valve. May be expressed in percentage of set pressure or "psig".

See Terms of Sale.

A small wooden box, with lock and key, in which seamen keep sentimental valuables, stationery, and sundry small stores.

A boat with one hull.

Timber placed across the floor of the cargo hold to protect it from damage.

An anchor is said to bite when the flukes dig themselves into the ground and hold firm without dragging.

Old term for the boat used by the captain to go ashore.

Moving belt which brings a continuous supply of buckets loaded with bulk commodities.

Turning out all hands on board ship in the morning, or calling the watch for duty on deck.

An acid carbonate.

Engineering science pertaining to gaseous pressure and flow.

The qualified operating pressure which is recommended for a component or a system by the manufacturer.

An unhandy seaman.

A distress call made by a vessel requiring assistance. These three letters were chosen because they were easy to make and read using Morse Code. Some believe the letters meant "Save Our Ship" or "Save Our Souls".

freezing of a piston ring in its groove in a piston engine or reciprocating compressor due to heavy deposits in the piston ring zone.

To go onboard, to go into a ship, or to gain access to a vessel.

Response to an offer which varies the terms or conditions of that offer.

A draft payable upon presentation to the drawee.

A load sufficient in size to fill a container either by cubic measurement or by weight.