A position based on estimations of a boat's position using estimated speed, currents, and the last known position/fix - of the boat.

Erasable Programmable Read Only Memory. Programable read-only memory which can be erased, usually by ultraviolet light, and re-programmed.

Lifeboat stations

A fluorescent lamp that has a tubular shape.

Where the water and sky or ground and sky appear to intersect.

A mortgage which is low in comparison to the amount deposited in cash by the.

A financial institution which invests large amounts of money in the stock, bond and other financial.

The distance from the surface of the water to the main deck or gunwale.

A feeble oscillatory disturbance of the earth's crust, detectable only by very sensitive seismographs. Certain types of microseisms seem to be closely correlated with pressure disturbances. See microbarm.

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

The smallest self-contained, environmentally protected structure housing interconnected photovoltaic cells and providing a single dc electrical output; also called a panel.

Is one that does not enter into known chemical combination, either with itself or another element. There are four known gases of this type: helium; neon; argon and krypton. or a gas that does not supply any of the needs of combustion.

A note, issued to a person or company when goods are returned by them, which cancels the original.

A financial institution such as a merchant bank which provides its services to launch the shares of.

Corrosion potential in the absence of net electrical current flowing to or from the metal surface.

Technically, the temperature registered by the dry-bulb thermometer of a psychrometer. However, it is identical with the temperature of the air and may also be used in that sense.

A standard unit of atmospheric pressure, defined as the pressure exerted by a 760 mm column of mercury at standard gravity (980.665 cm/sec2 ) at O

Vessel said to be "on her beam ends" when she is lying over so much that her deck beams are nearly vertical.

A photoelectric spectrophotometer which is used in the determination of the ozone content of the atmosphere.

An elongated area of relatively high pressure. Usually associated with and most clearly identified as an area of maximum anticyclonic curvature of the wind flow. The opposite of a trough.