To let out a line or sail slowly; to slacken or relieve tension on a line; to take pressure off.

Sixteenth-century term for a sea distance at which high land could be observed from a ship. Varied between 14 and 22 miles according to average atmospheric conditions in a given area.

Circular iron band used to hold a bowsprit on the stem of a sailing vessel.

(1) Said of ship's head when it moves away from wind, especially when tacking. (2) To discharge a crew and close Articles of Agreement of a merchant ship.

a circular donut-shaped buoy designed to support a person in the water. It is attached to the vessel with a (floating) line so that the person can be hauled back to the boat.

A term used to describe the hot gas pressure on the outlet side of the refrigeration compression.

Said of a lighthouse not tended.

Is the ratio of the polytropic compression energy transferred to the gas to the actual energy transferred to the gas.

Permanent pip iron ballast specially shaped and placed along each side of keelson. Name is sometimes given to any iron ballast.

Any person or entity who, in a contract of carriage, undertakes to perform or to procure the performance of carriage by rail, road, sea, air, inland waterway or by a combination of such modes.

A projecting aperture at the end of a tube, pipe etc. serving as an outlet for compressed air. Reduces the demand on the compressor by generating the highest thrust and volume for the lowest possible air consumption.

Abbreviation for "With Particular Average."

Bulk Carrier or Motorcar Carrier

A cleat designed to hold a line in place without slipping. It consists of two narrowing jaws with teeth in which the line is placed.

A fix taken by visually observing the location of known landmarks.

A sailing ship with three to five masts, all of them square-rigged except the after mast, which is fore-and-aft rigged.

The part of a rotating element that counteracts any inherent thrust developed by the impellers.

A fabric bag through which a gas stream is passed for the removal of particulate matter.

A charge, based on a fixed daily rate.

A wind shift that forces a boat to sail below its mean wind course.