(1) When two or more boats tie up alongside each other. (2) Overlapping of edges of two ice-floes, so that one floe is partly supported by the other.

Across the width of a boat. Also Athwartships.

Short shrouds which give support to the top of a lower mast.

Ratio of the pressure of a gas to its critical pressure, in like units.

On the land or aground.

Also bosun, bos'n, bo's'n, and bo'sun, all of which are pronounced bosun. The highest unlicensed rating in the deck department who has immediate charge of all deck hands, oversees deck crew, maintenance and upkeep of the ship except for the engine room an ...

Originally a seaman who, not wanting to work, preferred to exist by hanging around ports and harbors and living on the charity of others. Now more generally describing any loafer around the waterfront who prefers not to work.

The extreme deck fore and aft measurement of a vessel.

A concrete foundation with lateral supports which rests upon a number of steel springs. Designed to deal with disturbing frequencies in vibration isolation

Pieces of hard wood bolted to the outer end of a bowsprit through which are rove the foretopmast stays before they are brought in to the bows and secured.

A joint Bureau of the Census' International Trade Administration form used for compiling U.S. exports. It is completed by a shipper and shows the value, weight, destination, etc., of export shipments as well as Schedule B commodity code.

Beneath the deck

A book containing the official record of a ship's activities together with remarks concerning the state of the weather, etc.

Invisible waves in the electromagnetic spectrum that are used to communicate (radio) - and navigate (radar).

To put a narrow piece of canvas around it after it has been wormed, and before it has been served.

A sailor's carving or etching on bones, teeth, tusks or shells.

A logistical management system which integrates the sequence of activities from delivery of raw materials to the manufacturer through to delivery of the finished product to the customer into measurable components. "Just in Time" is a typical value-added e ...

Filter, Regulator and lubricator sometimes combined in one unit

A rudder, keel, centerboard, or skeg.

The ratio of clearance volume to the volume swept by the compressing element.