The straight or curved line of the deck line; curvature of the lines of a vessel toward the bow and stern.

The outer layer on a coalescing filter that prevents separated liquids from re-entering the air stream. Also known as anti re-entrainment barrier.

On the land or aground.

Applies to vessels, not to cargo, (0.2+0.02 log10V) where V is the volume in cubic meters of all enclosed spaces on the vessel.

Sailor's name for the north star, Polaris, which for all practical purposes remains fixed above the north pole, bearing north from everywhere in the northern hemisphere, making it a true aid to navigation.

A motor controller that regulates the air flow through an end plate into the motor to control the speed and power. A speed regulation device built into or attached externally.

Break horse power

The ratio of the actual water-vapor partial pressure to its saturation pressure at the same temperature. (considered only with atmospheric air).

Term used in the days of sail to indicate the starboard of the two anchors carried at the bow of a ship. The anchor on the port side was known as the small bower (although they were the same size).

Old name for bunting from which signal and other flags were made.

The outer resin surface of a fiberglass boat, usually colored.

Are load carrying machine elements permitting some degree of motion in which the lubricant is air or some other gas.

A vessel is in soundings when she is in sufficiently shallow water for soundings to be made and used as an aid in the vessel's navigation.

Temperature at which condesation first occurs and moisture is formed.

(1) The underside of the hull that sits in the water (2) The ocean floor

A mop, formed of old rope, used for cleaning and drying decks.

(SEE NEAPED)

Filter, Regulator and lubricator sometimes combined in one unit

A right claim against the guarantors of a loan or draft or bill of exchange.

The use of a sound barrier separating the sound from the receiver.