The ratio of the percentage change in the quantity of a good or service demanded to the percentage change in the price.

A situation where the exercise price of a call/put option approximates to the current market price.

A machine designed to drop and hoist the anchor. It has one or more cable lifters mounted on a horizontal shaft, each being fitted with a brake. The cable lifters are capable of being declutched from the prime mover. One or two warping ends may also be fi ...

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The positive direction of electrode potential, thus resembling noble metals such as gold and platinum.

A bond which was issued at a rating of AAA to BBB (investment grade) which has since fallen in.

A vector term which includes both wind speed and wind direction.

A small free-moving submersible designed for exploring the ocean depths.

The difference between temperature measurements taken at two significant levels above the ground. Temperatures at 10 and 40 meters are commonly used.

A point (or line) on a scale used for reference or comparison purposes. In calibration of meteorological thermometers, for example, the fiducial points are 100

Both a noun and a verb to describe the exterior surface of building elements (walls, floors, ceilings, etc.) and furniture, and the process of applying it.

The change in heat content that occurs with a change in phase and without change in temperature.

To exceed the design capacity of a device.

A heating system where heat is supplied (radiated) into a room by means of heated surfaces, such as electric resistance elements, hot water (hydronic) radiators, etc.

A device that releases pressure within a radiator when the pressure inside exceeds the operating limits of the vent.

A graph representing the relationship between the power available from the wind and the wind speed. The power from the wind increases proportionally with the cube of the wind speed.

Narrow triangular sail set on a long yard or spar, the forward end of which is hauled down so that it sets obliquely on the mast with a high peak.

The part of a rotating element that counteracts any inherent thrust developed by the impellers.

Cylindrical Water-Tube Boiler Survey.

That portion of the polarization of a cell produced by concentration changes resulting from passage of' current through the electrolyte.