Emission Definition

ĭ-mĭshən
emissions
noun
emissions
The act of emitting; issuance.
Webster's New World
Something emitted; discharge; often, specif., exhaust from a gasoline or diesel engine.
Webster's New World
A substance discharged into the air, especially by an internal combustion engine.
American Heritage
The act of sending or throwing out; the act of sending forth or putting into circulation; issue.
The emission of light from the sun.
The emission of heat from a fire.
Wiktionary

Other Word Forms of Emission

Noun

Singular:
emission
Plural:
emissions

Origin of Emission

  • First attested in 1607. From Middle French émission, from Latin ēmissiō (“sending forth”), from ēmittō (“send out”), from ex (“from, out of”) + mittō (“send”).

    From Wiktionary

  • Latin ēmissiō ēmissiōn- a sending out from ēmissus past participle of ēmittere to send out emit

    From American Heritage Dictionary of the English Language, 5th Edition

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