emission
noun
emis·sion
ē-ˈmi-shən 
1
a
: an act or instance of emitting : emanation
b
archaic
: publication
c
: a putting into circulation
2
a
: something sent forth by emitting: such as
(1)
: electromagnetic radiation from an antenna or a celestial body
(2)
usually emissions
: substances discharged into the air (as by a smokestack or an automobile engine)
b
Examples of emission in a Sentence
trying to reduce the emission of greenhouse gases
Recent Examples on the Web
The European Union is reportedly considering taking steps that would essentially soften the requirements for member nations to meet the bloc’s carbon emission reduction targets.
—
Callie Patteson, The Washington Examiner, 7 Apr. 2025
After that status, state and local governments would have to make plans to reduce air pollutant emissions.
—Chase Jordan, Charlotte Observer, 7 Apr. 2025
Trump's administrators are already reevaluating emissions standards.
—Time, 4 Apr. 2025
The Federal Communications Commission is gearing up to potentially relax radio emission restrictions for Starlink.
—Michael Kan, PC Magazine, 4 Apr. 2025
See All Example Sentences for emission
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Callie Patteson, The Washington Examiner, 7 Apr. 2025
After that status, state and local governments would have to make plans to reduce air pollutant emissions.
—Chase Jordan, Charlotte Observer, 7 Apr. 2025
Trump's administrators are already reevaluating emissions standards.
—Time, 4 Apr. 2025
The Federal Communications Commission is gearing up to potentially relax radio emission restrictions for Starlink.
—Michael Kan, PC Magazine, 4 Apr. 2025
See All Example Sentences for emission
Cite this Entry
“Emission.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/emission. Accessed 13 Apr. 2025.
Copy CitationKids Definition
emission
noun
emis·sion
ē-ˈmish-ən
1
: an act or instance of emitting
2
: something emitted or discharged
Medical Definition
emission
noun
emis·sion
ē-ˈmish-ən
1
: an act or instance of emitting
2
a
: something sent forth by emitting: as
(1)
: electrons discharged from a surface
(2)
: electromagnetic waves radiated by an antenna or a celestial body
(3)
: substances and especially pollutants discharged into the air (as by a smokestack or an automobile gasoline engine)
b
: a discharge of fluid from a living body
especially
: ejaculate see nocturnal emission
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