(metrology) A standard set of units of measurement for use in scientific literature worldwide. The newest and most widespread version of the metric system.

The quantity of heat required to raise the temperature of one pound of water one degree Fahrenheit at a particular temperature (there are several different precise definitions) and a pressure of one atmosphere.

A computer display; a screen or monitor that can be connected to a computer.

(chemistry) A unit of mass equal to 1/12 the mass of an atom of the ¹²C isotope of carbon.

(computer hardware) The part of a computer that fetches, decodes and executes instructions; attached directly to the memory.

(physics) A constant used as a unit of measurement for particle spin, equal to Planck's constant divided by 2π.

plural of Financial Intelligence Unit

A government agency found in many countries, responsible for investigating and preventing criminal manipulation of finance systems.

(mathematics) The function whose value is zero if its independent variable is negative, and one otherwise.

A device that is placed over or behind the propeller of a boat to deflect the vessel's propwash downward. The result is a very effective form of agitation dredging. PDUs are primarily used by salvors to remove mud or sand from shallow water shipwrecks.