An inspection cover or port in an air receiver tank.

A law of chemistry and physics: the rate of diffusion of one substance in another is proportional to the negative gradient of the concentration of the first substance.

Kilograms per square centimeter absolute.

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.

Nickname for a ship's cooper.

A large foresail or jib that overlaps the mainsail. Also known as a genny. Can be expressed in percentages of overlap, e.g. 150 Genoa is 50% overlap of the mainsail.

A container fitted with a means of forced air ventilation.

A small crane that projects over the side of the boat to raise or lower objects (such as smaller boats) from or to the water.

The bridge used for taking observations, or directing the handling of the ship.

The action of letting go the sheets of a sailing vessel, thus spilling the wind and reducing the forward motion of the boat.

A lubricating oil made with synthetic base stocks.

A charge, based on a fixed daily rate.

The white froth on the crests of waves.

The part of the upper deck which is abaft the mainmast, or in that general location of a ship without one. The quarterdeck was normally reserved for officers.

Specially designed for the transport of condensed (liquefied) gases. The most important gases are: ammonia, ethylene, LNG (Liquefied Natural Gas), which consists mainly of methane, and is cooled to a temperature of minus 163 degrees Celcius, and LPG (Liqu ...

Said of anchor when it is under ship's forefoot, and cable is nearly up and down.

Alternatively letting the sails draw, then spilling wind so as to keep a vessel more or less in one place until space is available, marking time.

Steel disc, that is dogged down over a porthole to secure against breakage of the glass and to prevent light from showing through.

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.

In sailing, to be lifted by a wind shift that allows your boat to be lifted closer to the wind where by it allows you to sail a shorter distance to the next mark, buoy or finish line