Any of the elements of the halogen family, consisting of fluorine, chlorine, bromine, iodine, and astatine.

To haul in or bind something together in order to create more space.

Stock in companies whose profits move in a cyclical manner, normally in phase with the economy. .

A glass membrane electrode used to measure pH or hydrogen-ion activity.

Said to weigh.

Heating a ferrous alloy to a suitable temperature above the transformation range and then cooling in air to a temperature substantially below the transformation range.

A turbine that uses water pressure to rotate its blades; the primary types are the Pelton wheel, for high heads (pressure); the Francis turbine, for low to medium heads; and the Kaplan for a wide range of heads. Primarily used to power an electric generat ...

International Federation of Ship Masters Associations

A scale with the ice point at zero degrees and the boiling point of water at 80 degrees, with pressure of one atmosphere.

The windward side (from where the wind is blowing).

(1) An organic compound in which atoms form more than one coordinate bond with metals in solution. (2) A substance used in metal finishing to control or eliminate certain metallic ions present in undesirable quantities.

The potential energy available in a fuel as received, taking into account the energy loss in evaporating and superheating the water in the fuel. Equal to the higher heating value minus 1050W where W is the weight of the water formed from the hydrogen in t ...

The wind speed and direction in an undisturbed flow.

Capital Expenditure Authorization.

A stationary vessel carrying a light used for navigation, serving the same purpose as a lighthouse.

The amount of energy service or useful energy delivered per unit of energy input. Often used in reference to lighting systems, where the visible light output of a luminary is relative to power input; expressed in lumens per Watt; the higher the efficacy v ...

The ratio of the radiant energy (heat) leaving (being emitted by) a surface to that of a black body at the same temperature and with the same area; expressed as a number between 0 and 1.

Ice pack whose limits cannot be seen from ship.

A naturally occurring radioactive gas found in the U.S. in nearly all types of soil, rock, and water. It can migrate into most buildings. Studies have linked high concentrations of radon to lung cancer.