(sciences, technology) A relative unit of measurement to show the ratio of amount of substance, intensity, or other quantities, to a predetermined reference measurement.

(television) A unit used in the measurement of composite video signals. A value of 100 IRE is defined to be +714 mV in an analog NTSC video signal.

Synonym of fusebox

A unit of measure for chemicals, the dose lethal to a cat.

(music) A unit that converts a high impedance signal to a low impedance signal to reduce interference, used to connect an instrument to a mixing console.

(mathematics) A set of points on a plane whose distance from a given point is less than or equal to one.

(transport) A truck (large road vehicle) capable of moving under its own power.

Synonym of prosodic unit

(phonetics) A segment of speech that occurs with a single prosodic contour.

plural of unit disk