A yard or pole extending the head or foot of the topsail beyond the topmast or gaff of a gaff-rigged boat

A place suitable for anchoring in relation to the wind, seas and bottom.

The distance between a rope's adjacent strands, giving a measure of the tightness of the lay. The shorter the distance, the harder the lay. When a line has been overused and the lay has become slack, it is said to be slack-jawed.

A pear-shaped, grooved metal fitting around which an eye splice is made

Reciprocating type compressor used mainly in oil and gas field applications. The compressor cylinders operate at low compression ratios and experience small temperature rise.

A thin, flexible wooden or plastic strip inserted into a pocket (batten pockets) on the back part (leech) of a sail to stiffen it and assist in keeping its form.

The original name for the left side of the vessel when facing forward. The name was changed to Port to avoid any confusion with starboard, the right side of the vessel when facing forward.

The motion of air relative to a body in it.

A pump which is used to deliver air to the aquarium. The pump pushes air through silicon tubing and to air stones or other aquatic decor. They are also an essential for UGF's (undergravel filters). An air stone is placed in each clear tube. When the air b ...

Slang name for the Q Flag. Also an old term for yellow fever.

A Short line used to attach one thing to another - a short rope or cord that secures or attaches an item onboard a boat, usually for keeping it attached to the boat

When compressed air is forced through a submerged perforated hose or pipe. Some applications include; ice prevention, reduction of salt intrusion, underwater basting, pneumatic breakwaters and general mixing and agitation

To come alongside.

An opening in a ship's deck for the loading and discharging of any kind of cargo.

A unit of electrical current or rate of flow of electrons through a conductor. One volt across one ohm of resistance causes a current flow of one ampere. One ampere is equal to 6.25 x 1018 electrons per second passing a set point in a circuit.

A term indicating a temperature relationship between two temperatures or temperature variation between two points.

Condensation which occurs when a ship sails from a cool to a relatively warm climate.

Measuring point for compressor acceptance test. Pressure before an orifice or nozzle, downstream of compressor discharge.

Is a measure of resistance to deformation, or reluctance to be squeezed out a bearing. Indicates the internal friction of a fluid. Viscosity in normal lubricants is reduced as temperature increases

Guarantee issued by a bank to a carrier to be used in lieu of lost or misplaced original negotiable bill of lading.