Something which is emitted or sent out; issue. / The act of emitting; the act of sending forth or putting into circulation.

plural of emission

(physics) The energy-emitting propensity of a surface, usually measured at a specific wavelength.

Of, pertaining to, or having the capacity to emit radiation or matter; emitting

plural of emissivity

(physics) The emission of electrons from a metal or semiconductor, under the influence of a strong electric field, by quantum tunnelling.

(uncountable, engineering, acoustics) A phenomenon wherein external stimuli such as mechanical loading generate physical vibrations.

A measurement performed on motor vehicles, required by the DMV, to prevent issuing valid registration if an excessive amount of waste fumes are produced during typical use. Cars typically are placed on a dynamometer to simulate different driving speeds.

An ejaculation or orgasm while asleep, often accompanied by an erotic dream.

(physics) A form of radioactivity in which alpha particles are emitted from the nucleus of an atom