To save this word, you'll need to log in.
emis·sion | \ ē-ˈmi-shən 
\
\Definition of emission
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
Keep scrolling for more
Other Words from emission
emissive \ ē-ˈmi-siv \ adjective
\ adjectiveExamples of emission in a Sentence
trying to reduce the emission of greenhouse gases
Recent Examples on the Web Among the benefits are the reduction of carbon emissions and improved air quality — even improved mental and physical health.
—
London Gibson, Indianapolis Star, "Indianapolis building gets highest 'green' building certification possible," 29 Nov. 2019 Air travel is one of the leading sources of carbon emissions.
—
Ashley Boucher, PEOPLE.com, "Bella Hadid Paying to Have 600 Trees Planted to Help Reduce Her Carbon Footprint from Air Travel," 28 Nov. 2019 By the middle of the century, climate models estimate average temperatures in Oman will be 3 or 4 degrees hotter that the historical average, depending on the scenario of planet-heating carbon emissions.
—
Ian James, azcentral, "Ancient aqueducts in Oman imperiled by modern wells and climate change," 28 Nov. 2019 The fashion industry produces 20% of global wastewater and 10% of global carbon emissions, according to the U.N. Environment Programme.
—
Laura Pitcher, Teen Vogue, "Why Some Brands Are Taking a Stand Against Black Friday," 27 Nov. 2019 According to the International Air Transport Association, flights were responsible for 2.4 percent of global energy-related carbon dioxide emissions in 2018.
—
Heather Hansman, Outside Online, "How to Go Green on Black Friday," 26 Nov. 2019 Australia only accounts for 1.3% of global emissions when calculating the carbon dioxide released within the country.
—
Rachael Bunyan, Time, "Koalas Were Already on the Brink in Australia. Bushfires Have Killed 1,000 in 2 Months, Experts Say," 26 Nov. 2019 It’s estimated that about 60 percent of methane emissions come from human activities, such as from landfills, cattle breeding and certain types of agriculture, while the other 40 percent comes from natural sources.
—
Denise Chow, NBC News, "Carbon dioxide in Earth's atmosphere reaches record high, researchers say," 25 Nov. 2019 Governments are key Of the 27 fossil fuel-producing countries, the top nine account for over two-thirds of global fossil fuel CO2 emissions, the report says.
—
Stephen Leahy, National Geographic, "Dangerous levels of warming locked in by planned jump in fossil fuels output," 20 Nov. 2019
See MoreThese 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.
Keep scrolling for more
Keep scrolling for more
More Definitions for emission
emission
nounEnglish 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
See the full definition for emission in the English Language Learners Dictionary
emission
nounemis·sion | \ ē-ˈmi-shən \
\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
nounemis·sion | \ ē-ˈmish-ən \
\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)
Keep scrolling for more
Comments on emission
What made you want to look up emission? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Semantic Drift Quiz
- Which of the following was once a synonym for fun?
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
Share emission
Time Traveler for emission
The first known use of emission was in 1607
See more words from the same year