When a ship's head or stern pitches suddenly and violently into the trough of the sea.

Temperature at which condesation first occurs and moisture is formed.

A gas produced by many fruits and vegetables that accelerates the ripening and aging processes.

The largest circle which can be inscribed on a sphere by a plane that cuts through the center of the sphere. On the earth, the equator is a great circle, as are all the meridians of longitude which pass through both poles. The shortest distance between tw ...

A U-shaped fitting closed with a pin across the open ends, the pin sometimes being threaded at one end and sometimes held in place with a cotter pin, and used to secure sails to lines or fittings, lines to fittings, fittings to fittings, anchors to chain, ...

A disturbance of surface water by conflicting current or by winds.

One which blows across a boat's side

A short spar projecting over the stern of a sailing vessel to sheet the mizzen sail when the mizzen-mast is so far aft that there's not enough room inboard to bring down the sheet and trim the sail. Also, a short spar extending from the stemhead in place ...

A pressure below that of the existing atmospheric pressure taken as a zero reference.

A mechanical barometer used to measure air pressure for warnings of changing weather.

To turn the boat away from the wind. Also, Fall Off. The opposite of heading up.

The standard atmosphere is defined as the pressure exerted by a column of mercury 760 mm high with a density of 13,595 g/cm

Shipment of goods to a foreign country.

A short piece of line spliced into the end of the clapper by which the bell is struck. Traditionally it is finished off with a double wall knot crowned in its end.

Articles handled only under certain conditions.

Imaginary lines drawn through the north and south poles on the globe used to measure distance east and west of the prime meridian at Greenwich, England (designated as 0

To coil flat down on deck, each fake outside the other, beginning in the middle and all close together.

An old method of cleaning a vessels bottom by burning off weed, barnacles or other growth while the vessel was in dry dock or careened. Breaming was also known as graving.

The north end of the earth's axis and also called North Geographic Pole. The direction indicated by 000

The distance the ship's side falls in towards the center line above the load water line. Opposite of flare.