The portion of a valve used to guide the disc.

A Latin term meaning "For the sake of form."

A written agreement between the master of a ship and the crew concerning their employment. It includes rates of pay and capacity of each crewman, the date of commencement of the voyage and its duration.

A small buoy that is used to mark the position of an anchor. It is attached to the base or crown of an anchor and can be used to recover the anchor if it has to be cast adrift, or to trip it if it becomes wedged.

A knot with two half hitches loops - on the standing part of the line.

An astray shipment (a lost shipment that is found) sent to its proper destination without additional charge.

A term used to cover all of the anchor gear.

A quality of compressed air for use with pneumatic instruments and controls. (usually dry and free from contaminants)

The lower yard on a mizzen mast of a square-rigged ship.

Leaning out over the side of the boat to to counteract heel and balance it.

A vertical longitudinal center line section of a vessel.

On a square-rigged ship, a small triangular sail set above the skysail in fair weather. A square version is called a Moonraker.

The part of a ship's rigging which is permanently secured and immovable; e.g. stays, shrouds, etc.

Is a pipe extending downward from the bottom of the airline to collect any condensation flow in the pipe.

A change in the wind direction.

A fender made of granulated cork and covered with woven tarred stuff.

A liquid piston compressor is a rotary compressor in which a vaned rotor revolves in an elliptical casing, with the rotor spaces sealed by a ring of liquid rotating with it inside the casing.

A large net with its mouth held open, towed by a trawler along the bottom to catch bottom fish.

The marrying of two or more portions of one shipment that originate at different locations, moving under one bill of lading, from one shipper to one consignee. Authority for this service must be granted by tariff publication. See Bill of Lading.