A longitudinal stiffener for the side of a ship, made of angle bar, bulb angle channel or plates, etc. Depending upon their locations, stringers are known as bilge stringers, side stringers, hole stringers, etc.

Marine Safety Office

A device for mounting cylinders.

A sinusoidal quantity having a frequency that is an integral multiple of the frequency of a periodic quantity to which it is related.

The cost of producing one additional unit of a product.

A hand held pneumatic chipping tool which the blows are transmitted through a group of floating needles or metal rods.

Usually refers to intracity hauling on drays or trucks.

The ratio of a boiler's or gasifier's maximum output to its minimum output.

To transfer containers from one ship to another when both vessels are controlled by the same network (carrier) manager.

Water washing over; the situation of an object when almost submerged.

Leaking, Underground.

Harmonized Tariff Schedule of the United States

A guy who gets Head (toilet) cleaning detail.

National Transportation Safety Board (U.S.)

An angle or channel from deck beam to shell frame taking the place of a bracket.

Maritime rescue coordination centre

(1) Formation of a new, strain free grain structure from that existing in cold worked metal, usually accomplished by heating. (2) The change from one crystal structure to another, as occurs on heating or cooling through a critical temperature.

A low headroom space below decks used for provisions or spare parts, or miscellaneous storage.

The cover of a scuttle-way or small hatchway which leads to to or from a store room, cabin of small craft, crew's quarters, the forecastle or fore peak.

An index that combines sensible temperature and air humidity to arrive at a number that closely responds to the effective temperature; used to relate temperature and humidity to levels of comfort.