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emissions - 2 dictionary results

e⋅mis⋅sion

[i-mish-uhn]
–noun
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.

Origin:
1600–10; (< MF) < L ēmissiōn- (s. of ēmissiō), equiv. to ēmiss(us), ptp. of ēmittere to emit (ē- e- + mit- send + -tus ptp. suffix) + -iōn- -ion


5. ejaculation. 6. ejaculate.
e·mis·sion   (ĭ-mĭsh'ən)   
n.  
  1. The act or an instance of emitting.
  2. Something emitted.
  3. A substance discharged into the air, especially by an internal combustion engine.

[Latin ēmissiō, ēmissiōn-, a sending out, from ēmissus, past participle of ēmittere, to send out; see emit.]
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