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 result, the band claimed, would reduce carbon emissions by some 85% and avoid the creation of 25 metric tonnes of virgin plastic.
—
Jordan Bassett, SPIN, 1 Jan. 2025
Initially, the company demonstrated leadership in the energy sector by pledging to achieve net-zero emissions by 2050 or earlier.
—Trefis Team, Forbes, 31 Dec. 2024
Overall the vessel reduces CO2 emissions by 40 percent over a year of average use, both when cruising and at anchor, compared to a traditional flybridge boat of similar dimensions.
—Sofia Celeste, WWD, 31 Dec. 2024
The city also heard an update on its climate action plan including its ongoing efforts to reduce carbon emissions, which had decreased by 29% since 1990.
—Isha Trivedi, The Mercury News, 30 Dec. 2024
See all Example Sentences for emission 
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Jordan Bassett, SPIN, 1 Jan. 2025
Initially, the company demonstrated leadership in the energy sector by pledging to achieve net-zero emissions by 2050 or earlier.
—Trefis Team, Forbes, 31 Dec. 2024
Overall the vessel reduces CO2 emissions by 40 percent over a year of average use, both when cruising and at anchor, compared to a traditional flybridge boat of similar dimensions.
—Sofia Celeste, WWD, 31 Dec. 2024
The city also heard an update on its climate action plan including its ongoing efforts to reduce carbon emissions, which had decreased by 29% since 1990.
—Isha Trivedi, The Mercury News, 30 Dec. 2024
See all Example Sentences for emission
Dictionary Entries Near emission
Cite this Entry
“Emission.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/emission. Accessed 5 Jan. 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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share