emission

noun
emis·​sion | \ ē-ˈmi-shən How to pronounce emission (audio) \

Definition of emission

1a : an act or instance of emitting : emanation
b archaic : publication
c : a putting into circulation
2a : 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 : effluvium

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Other Words from emission

emissive \ ē-​ˈmi-​siv How to pronounce emissive (audio) \ adjective

Examples of emission in a Sentence

trying to reduce the emission of greenhouse gases

Recent Examples on the Web

According to the Sustainable Apparel Coalition, the fashion industry generates 1.2 billion tons of greenhouse emissions every year, more than the amount created by international flights and maritime shipping combined. Erin Quinn-kong, Woman's Day, "Are Your Fast-Fashion Clothes Killing Farmers?," 14 Feb. 2019 Airplanes make up a much smaller part of emissions at 9 percent. David Grossman, Popular Mechanics, "New Green Deal, Explaind: What's Actually in the Alexandria Ocasio-Cortez Energy Plan?," 8 Feb. 2019 Transportation is now the U.S.’s biggest source of carbon emissions. Diana Budds, Curbed, "The future of urban mobility will be shaped by these six issues," 18 Dec. 2018 Cement, steel, glass, and aluminum industries could also be taxed on some of their emissions. Sarah Mearhoff, Teen Vogue, "Republican Congressman Carlos Curbelo Is Fighting His Party for a Carbon Tax," 19 July 2018 WeWork estimates the new policy change will save 445.1 million pounds of carbon dioxide emissions by 2023, 16.6 billion gallons of water and 15,507,103 animals. Michelle Gant, Fox News, "WeWork no longer reimbursing meals containing meat," 16 July 2018 According to a report from Bloomberg, the Trump administration's Environmental Protection Agency (EPA) is not considering a roll back of Obama-era rules regulating industrial emissions of mercury. Megan Geuss, Ars Technica, "EPA to keep Obama-era mercury rules, but make it harder to tighten them," 26 Dec. 2018 Every year, the average American throws away 70 pounds of clothing, sending massive amounts of textiles to landfills or incinerators and contributing to the emission of hazardous greenhouse gases, which speeds up climate change. Tabor Wordelman, Teen Vogue, "Your Yoga Pants Are Polluting the Water You Drink," 19 Dec. 2018 The various models for neutrino emission from blazars, developed in blissful theoretical isolation, have now had their first encounter with real data, and none can explain the exact details seen. Mark Bowen, Scientific American, "Neutrinos on Ice: Astronomers' Long Hunt for Source of Extragalactic "Ghost Particles" Pays Off," 12 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'emission.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of emission

1607, in the meaning defined at sense 1a

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Statistics for emission

Last Updated

11 Mar 2019

Look-up Popularity

Time Traveler for emission

The first known use of emission was in 1607

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More Definitions for emission

emission

noun

English Language Learners Definition of emission

: the act of producing or sending out something (such as energy or gas) from a source
: something sent out or given off

emission

noun
emis·​sion | \ ē-ˈmi-shən How to pronounce emission (audio) \

Kids Definition of emission

1 : the act of giving off The energy plant is reducing the emission of harmful gases.
2 : something that is given off Scientists can record radio emissions from far-off stars.

emission

noun
emis·​sion | \ ē-ˈmish-ən How to pronounce emission (audio) \

Medical Definition of emission

1 : an act or instance of emitting
2a : 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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More from Merriam-Webster on emission

Spanish Central: Translation of emission

Nglish: Translation of emission for Spanish Speakers

Britannica English: Translation of emission for Arabic Speakers

Britannica.com: Encyclopedia article about emission

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