A small naval sword worn by midshipmen or their equivalents when in full dress uniform.

The forward part of a boat's main deck.

An arc of a circle in which certain types of navigational lights known as sector lights are visible.

Of a system (or part thereof) is its condition at an instant of time as described or measured by its properties.

The operation of swinging round, by means of braces, the yards of a square rigged ship to set the sails more efficiently to the wind.

A system of reefing a sail by partially furling it. Roller furling systems are not necessarily designed to support roller reefing.

The slight deflection of very small particles in a gas stream that occurs when rapidly moving gas molecules strike them.

Procedure where carrier tests the temperature of the internal flesh of refrigerated commodities to assure that the temperature at time of shipment conforms to prescribed temperature ranges.

A two-masted vessel with foremast square rigged, and mainmast fore and aft rigged. Originally, a ship of brigands, or pirates.

The upward curvature of the keel towards the bow and stern.

A condition of filter element loading in which contaminant spans the space between adjacent sections of a filter element, thus blocking a portion of the useful filtration.

A certified document showing the origin of goods; used in international commerce.

At or in the direction of the bow. Also the fore part of the ship.

Steps in the compression of a gas, In reciprocating compressors, each stage usually requires a separate cylinder, in dynamic compressors, each requires a separate rotor disc.

The aft edge of a sail, more commonly called the leech.

A waybill covering two or more consignments of freight.

A private ship operating under license from a government against the merchant shipping of an enemy.

To take down a sail quickly; the entire action of getting a sail out of the wind and furling it.

A very high wind. Also called "Snotter"

CFM. An airflow measurement of volume.