\ ē-ˈmit How to pronounce emit (audio) \
emitted; emitting

Definition of emit

transitive verb

1a : to throw or give off or out emit light/heat
b : to send out : eject
2a : to issue with authority especially : to put (something, such as money) into circulation
b obsolete : publish
3 : to give utterance or voice to emitted a groan

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Other Words from emit

emitter noun

Examples of emit in a Sentence

The telescope can detect light emitted by distant galaxies. chimneys emitting thick, black smoke The brakes emitted a loud squeal.
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Recent Examples on the Web Hospitals have been using robots that emit UV-C light for years to disinfect patient rooms, operating rooms and other areas where bacterial infection can spread. Karl Linden, The Conversation, "Ultraviolet light can make indoor spaces safer during the pandemic – if it’s used the right way," 9 Sep. 2020 And multiple particles subject to the same gravitational lurch will emit in unison. George Musser, Science | AAAS, "One of quantum physics’ greatest paradoxes may have lost its leading explanation," 7 Sep. 2020 To study and map the halo, scientists identified 43 quasars—huge cores of black holes that emit enormous amounts of light and energy—that are located in the distance behind Andromeda, from Hubble’s perspective. Nora Mcgreevy, Smithsonian Magazine, "Andromeda’s Halo of Gases Is Bumping Up Against Our Own, Scientists Say," 2 Sep. 2020 In addition, the Navy used parts of both sites as radioactive waste dumps, burying thousands of small objects that emit low-level gamma radiation. Jason Fagone, San Francisco Chronicle, "‘Extremely unlikely that they will find anything’," 28 Aug. 2020 Thanks to better technology and pressure from regulators, ionizing filters that don’t generate ozone are now available, and the California Air Resources Board has created a list of those that emit only safe levels of ozone. David Z. Morris, Fortune, "Can an air purifier help protect you from COVID-19?," 22 Aug. 2020 Arctic wildfires—especially those burning in the carbon-rich zone between tundra and boreal forest—emit a wide range of pollutants including carbon monoxide, nitrogen oxides, volatile organic compounds and solid aerosol particles. The Economist, "Daily chart This year’s Arctic wildfires are the worst on record, again," 7 Sep. 2020 All the excess electrons knock the plasma molecules into an excited state, which then emit photons to produce that telltale glow. Jennifer Ouellette, Ars Technica, "How “St. Elmo’s fire” could help protect aircraft from lightning strikes," 20 Aug. 2020 Electric vehicles are required to emit a sound to alert pedestrians to their presence. Mark Phelan, Detroit Free Press, "Toyota snubs electric vehicle trend with plug-in hybrid 2021 RAV4 Prime, but will it work?," 20 Aug. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'emit.' 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 emit

1598, in the meaning defined at sense 1a

History and Etymology for emit

Latin emittere to send out, from e- + mittere to send

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Statistics for emit

Last Updated

22 Sep 2020

Cite this Entry

“Emit.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/emit. Accessed 24 Sep. 2020.

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More Definitions for emit


How to pronounce emit (audio)

English Language Learners Definition of emit

: to send (light, energy, etc.) out from a source
: to make (a certain sound)


\ ē-ˈmit How to pronounce emit (audio) \
emitted; emitting

Kids Definition of emit

: to send out from a source emit light

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Comments on emit

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