[ih-mish-uh n] /ɪˈmɪʃ ən/
an act or instance of :
the emission of poisonous fumes.
something that is ; discharge; emanation.
an act or instance of issuing, as paper money.
Electronics. a measure of the number of electrons by the heated filament or cathode of a vacuum tube.
an ejection or discharge of semen or other fluid from the body.
the fluid ejected or discharged.
the act of emitting or sending forth
energy, in the form of heat, light, radio waves, etc, emitted from a source
a substance, fluid, etc, that is emitted; discharge
a measure of the number of electrons emitted by a cathode or electron gun: at 1000°C the emission is 3 mA See also secondary emission, thermionic emission
(physiol) any bodily discharge, esp an involuntary release of semen during sleep
an issue, as of currency
early 15c., “something sent forth,” from Middle French émission (14c.) and directly from Latin emissionem (nominative emissio) “a sending out, projecting, hurling, letting go, releasing,” from past participle stem of emittere “send out” (see emit). Meaning “a giving off or emitting” is from 1610s.
emission e·mis·sion (ĭ-mĭsh’ən)
A discharge of fluid from a living body, usually a seminal discharge.
noun, Astronomy. 1. a bright diffuse nebula that emits light as a result of ionization of its gas atoms by ultraviolet radiation, as the Orion Nebula, planetary nebulae, and supernova remnants, as the Crab Nebula. noun 1. a type of nebula that emits visible radiation See nebula emission nebula (ĭ-mĭsh’ən) A nebula that absorbs ionizing […]
noun, Physics. 1. the spectrum formed by electromagnetic radiations emitted by a given source, characteristic of the source and the type of excitation inducing the radiations. noun 1. the continuous spectrum or pattern of bright lines or bands seen when the electromagnetic radiation emitted by a substance is passed into a spectrometer. The spectrum is […]
- Emissions trading
noun an approach used to control pollution by providing economic incentives for achieving reductions in the emissions of pollutants; also called cap-and-trade Examples The fact that the permits in emissions trading have value as an item to be sold or traded gives the owner an incentive to reduce their emissions.
[ih-mis-iv] /ɪˈmɪs ɪv/ adjective 1. serving to emit. 2. pertaining to .