Same as windsock.

To unfold or unroll a sail. The opposite of furl.

A light source composed of a metal base, a glass tube filled with an inert gas or a vapor, and base pins to attach to a fixture.

The unit of illuminance equivalent to 1lumen per square meter.

A device for measuring sea-surface waves. It consists of a weighted pole below which a disk is suspended at a depth sufficiently deep for the wave motion associated with deepwater waves to be negligible. The pole will then remain nearly as if anchored to ...

The prescribed level of pollutants allowed in outside or indoor air as established by legislation.

A small portable compass.

An investor who believes share prices are going to fall. He therefore sells shares, sometimes.

A common type of terrestrial scintillation; shimmering over a hot surface (such as a roadway) on a quiet, cloudless. summer day.

Ability of a metal to withstand corrosion in a given corrosion system.

To leave a ship without authority (deserting).

Any sudden and heavy rain, almost always of the shower type.

An empirical curve relating stream discharge or stage at a point on a stream to discharge or stage at one or more upstream points and, possibly. to other parameters. Also called stage relation.

International Marine Contractors Association

International Medical Guide for Ships

The net transfer of electric charge per unit time. Also called electric current. See also current density.

When one listed company bids for another company (listed or private), and offers to pay in three.

That portion of the base metal that was not melted during brazing, cutting, or welding, but whose microstructure and mechanical properties were altered by the heat; Refers to area adjacent to a weld where the thermal cycle has coused microstructural chang ...

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.

Cargo landed in excess of the quantity on manifest.