emission

[ ih-mish-uhn ]

See synonyms for: emission emissions on Thesaurus.com

noun

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

First recorded in 1600–10; from Middle French or directly from Latin ēmissiōn- (stem of ēmissiō ), equivalent to ēmiss(us), past participle of ēmittere “to send forth” (ē- “from, out of” + mit-, stem of mittere “to send” + -tus past participle suffix) + -iōn- noun suffix; see origin at emit, e-¹, -ion

Other words for emission

5	ejaculation
6	ejaculate

See synonyms for emission on Thesaurus.com

Other words from emission

non·e·mis·sion, noun
re·e·mis·sion, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use emission in a sentence

It's also become the largest energy producer in the world, even while reducing greenhouse gas emissions.
Politics End In Halifax As Democratic and GOP Senators Seek Common Ground on National Security | Tim Mak | November 22, 2014 | THE DAILY BEAST
But meeting any emissions pledges will be extremely difficult.
Obama and Xi Jinping Say They’ll Work Together to Save Environment | Ben Leung | November 12, 2014 | THE DAILY BEAST
This is up from a previous target of cutting emissions by 17 percent by 2020.
Obama and Xi Jinping Say They’ll Work Together to Save Environment | Ben Leung | November 12, 2014 | THE DAILY BEAST
Under unusually blue skies in Beijing, the American and Chinese presidents vow cooperation to reduce greenhouse gas emissions.
Obama and Xi Jinping Say They’ll Work Together to Save Environment | Ben Leung | November 12, 2014 | THE DAILY BEAST
The Obama administration may be crowing about its “historic” emissions agreement.
The U.S.-China Climate Deal Is Mostly Hot Air | Tim Mak | November 12, 2014 | THE DAILY BEAST

We may also, in this connexion, think of the seminal emissions sometimes observed in cases of suicidal hanging.
The Sexual Life of the Child | Albert Moll
We can, indeed, recognise this also in the dream life, at least as soon as the first nocturnal emissions have occurred.
The Sexual Life of the Child | Albert Moll
I had then less trouble after that in admitting two emissions of waves in one and the same body.
Treatise on Light | Christiaan Huygens
While the paper emissions of congress continued to circulate, they were employed as a sinew of war, like gold and silver.
Great Events in the History of North and South America | Charles A. Goodrich
And the like is observable in Bodies electrical, whose emissions are less subtile.
The Works of Sir Thomas Browne (Volume 1 of 3) | Thomas Browne

British Dictionary definitions for emission

emission

/ (ɪˈmɪʃən) /

noun

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 gun: at 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

Origin of emission

C17: from Latin ēmissiō, from ēmittere to send forth, emit

Derived forms of emission

emissive, adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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