The act of sending or throwing out; the act of sending forth or putting into circulation; issue; as, the emission of light from the sun; the emission of heat from a fire; the emission of bank notes. [1913 Webster]
That which is sent out, issued, or put in circulation at one time; issue; as, the emission was mostly blood. [1913 Webster]

Emission theory (Physics), the theory of Newton, regarding light as consisting of emitted particles or corpuscles. See Corpuscular theory, under Corpuscular.

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OXFORD DICTIONARY

emission, n.
1 (often foll. by of) the process or an act of emitting.
2 a thing emitted.

Etymology

L emissio (as EMIT)

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THESAURUS

emission

blowout, discharge, disgorgement, effusion, egestion, ejaculation, ejection, elimination, emanation, emergence, emersion, eructation, eruption, excretion, expulsion, extravasation, extrusion, exudation, flow, flux, issuance, issue, jet, outburst, outpour, secretion, spout, spurt, squirt, surfacing, transudation, vent

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ROGET THESAURUS

emission

Ejection

N ejection, emission, effusion, rejection, expulsion, exportation, eviction, extrusion, trajection, discharge, emesis, vomiting, vomition, egestion, evacuation, ructation, eructation, bloodletting, venesection, phlebotomy, paracentesis, expuition, exspuition, tapping, drainage, clearance, clearage, deportation, banishment, rouge's march, relegation, extradition, dislodgment, bouncer, chucker-out, vomit, vomitus, puke, barf, emitting, emitted Int, begone!, get you gone!, get away, go away, get along, go along, get along with you, go along with you!, go your way!, away with!, off with you!, get the hell out of here!, go about your business!, be off!, avaunt!, aroynt!, allez-vous-en!, jao!, va-t'en!.

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