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e•mis•sion



Pronunciation: (i-mish'un), [key]
n.
1. an act or instance of emitting: the emission of poisonous fumes.
2. something that is emitted; discharge; emanation.
3. an act or instance of issuing, as paper money.
4. Electronics.a measure of the number of electrons emitted by the heated filament or cathode of a vacuum tube.
5. an ejection or discharge of semen or other fluid from the body.
6. the fluid ejected or discharged.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

emissaryemission nebula
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