The amount of energy (in electron volts) required to free an outer shell electron from its orbit about the nucleus to a free state, and thus promote it from the valence to the conduction level.

A device used to control the voltage in a fluorescent lamp.

To lay the head yards abox in a square rigged sailing vessel was to lay them square to the foremast in order to heave-to.

Macroscopic progression marks on a fatigue fracture or stress-corrosion cracking surface that indicate successive positions of the advancing crack front. The classic appearance is of irregular elliptical or semielliptical rings, radiating outward from one ...

Auxiliary Management Information System.

Hertz

A sunshine recorder of the type in which the time scale is supplied by the motion of the sun. It consists of two opaque metal semi-cylinders mounted with their curved surfaces facing each other. Each of the semi-cylinders has a short narrow slit in its fl ...

The next grade above the beginning grade of ordinary seaman in the deck crew.

Boiler Heating Surface(combined)

A chemical substance that yields hydroxyl ions (OH ) when dissolved in water. Compare with acid.

A forecast of weather elements of particular interest to aviation; including ceiling, visibility, upper winds, icing, turbulence, precipitation types, and storms.

Association of Shipbrokers and Agents (U.S.A.) Inc.

Marine Custody Transfer

See instrument error, observational error. random error, standard error, systematic error.

Europe Asia Trades Agreement (Conference)

Intergranular corrosion of an alloy, usually stabilized stainless steel, along a line adjoining or in contact with a weld after heating into the sensitization temperature range.

Total Observed Volume

Breaks in a coating that extend through to the underlying surface.

A flexible roll or strip of insulating material in widths suited to standard spacings of building structural members (studs and joists). They are made from glass or rock wool fibers. Blankets are continuous rolls. Batts are pre-cut to four or eight foot l ...

Stern To Manifold (Distance)