In charge of twelve to four watch. Ships navigation officer. Keeps charts (maps) up to date and monitors navigation equipment on bridge.

Limber hole of a ship.

Self Contained underwater Breathing Apparatus - see Aqualung.

Landfall. To reach shore.

is an ejector used to compress waste or exhaust steam or any other gas through a moderate range of compression above atmospheric pressure.

Having to do with boats, ships, or sailing.

A smooth hard wood grown in the West Indies which had many maritime uses, such as deadeyes and the sheaves of blocks. Its hardness stood up well to wear, and its smoothness allowed lines to render through easily.

Sailing downwind with the wind blowing over the leeward side of the boat, increasing the possibility of an unexpected jibe.

A comparison of a carrier's operating expense with its net sales. The most general measure of operating efficiency.

A trade arrangement in which goods are shipped to a foreign buyer without guarantee of payment.

Additive that promotes the formation of a stable mixture, or emulsion, of oil and water. Common emulsifiers are: metallic soaps, certain animal and vegetable oils, and various polar compounds.

A unit used when measuring atmospheric pressure. 33.86 millibars.

An instrument that can be modified or cancelled at any moment without notice to and agreement of the beneficiary, but customarily includes a clause in the credit to the effect that any draft negotiated by a bank prior to the receipt of a notice of revocat ...

The stationary seating surface, the inlet of a valve.

Relay to all others in order (a signal repeated from one ship to the next astern in column).

Direction or bearing of an object relative to a boat's heading.

Movement of cargo by water from one country through the port of another country, thence, using rail or truck, to an inland point in that country or to a third country. As example, a through movement of Asian cargo to Europe across North America.

Above this pressure, the system may rupture or burst.

Slang for the leg irons which were used to secure men under punishment.

Originally, to suck rum from a coconut, the end of the nut resembling a monkey's face. Later, illicitly to suck spirit from a cask, usually through a straw. Also called Bleed the Monkey.