- an act or instance of emitting: the emission of poisonous fumes.
- something that is emitted; discharge; emanation.
- an act or instance of issuing, as paper money.
- Electronics. a measure of the number of electrons emitted 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.
Origin of emission
Examples from the Web for emission
The DEP has authority only over manufacturing or emission sites, not mere storage sites, as this one is.The Charleston Water Saga
January 14, 2014
As in: At current emission levels, we will suffer Total Weather Apocalypse by 2050.Great Weekend Reads
The Daily Beast
February 12, 2011
Emission reductions from recycling are not massive, but they are still significant.Will the Recession Kill Recycling?
July 11, 2009
If it isn't, the emission of the light itself gives it a kick that moves it.The Ultimate Weapon
John Wood Campbell
It is the sexual excitement more than the emission which exhausts.Searchlights on Health: Light on Dark Corners
Fenellan, would have discharged an extinguisher on punctilio in emission.One of Our Conquerors, Complete
The sound of the name represents the emission of breath from the mouth.The Myths of the North American Indians
A small aperture, about the middle of it, sufficed for the emission of his words.Odd Volume
- 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 gunat 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
Word Origin and History for emission
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.
- A discharge of fluid from a living body, usually a seminal discharge.