emission

noun

emis·​sion ē-ˈmi-shən How to pronounce emission (audio)
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
emissive adjective

Examples of emission in a Sentence

trying to reduce the emission of greenhouse gases
Recent Examples on the Web Those companies would then make payments calculated based on each corporation’s emissions from 1995 to 2024. Stephanie Hanes, The Christian Science Monitor, 31 May 2024 Catalytic converters thefts Catalytic converters, which control exhaust emissions, are typically found in the undercarriage of a vehicle and contain precious metals including rhodium, palladium and platinum. Richard Winton, Los Angeles Times, 30 May 2024 Desalination requires enormous amounts of electricity; the solar energy reduces the need to tap into the power grid and, consequently, cuts emissions. Stanley Reed, New York Times, 29 May 2024 Last week, the research group released results from a two-month, two-ship trial showing a 17.3% reduction in carbon dioxide emissions. Ryan Erik King / Jalopnik, Quartz, 23 May 2024 See all Example Sentences for emission 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'emission.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1607, in the meaning defined at sense 1a

Time Traveler
The first known use of emission was in 1607

Dictionary Entries Near emission

Cite this Entry

“Emission.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/emission. Accessed 5 Jun. 2024.

Kids Definition

emission

noun
emis·​sion ē-ˈmish-ən How to pronounce emission (audio)
1
: an act or instance of emitting
2
: something emitted or discharged
emissive adjective

Medical Definition

emission

noun
emis·​sion ē-ˈmish-ən How to pronounce emission (audio)
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
Last Updated: - Updated example sentences
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