con·​tam·​i·​nant | \ kən-ˈta-mə-nənt How to pronounce contaminant (audio) \

Definition of contaminant

: something that contaminates

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Examples of contaminant in a Sentence

a filter to remove contaminants from the drinking water

Recent Examples on the Web

Some clerics and political leaders encouraged boycotting immunization, citing contaminants that could reduce the Muslim population and mistrust of the government. Shobana Shankar, Quartz Africa, "What the United States could learn from Nigeria about taking on anti-vaxxers," 7 June 2019 Those challenges include issues in agriculture, industry, addressing contaminants, infrastructure, food systems, transportation and more. Devi Shastri, Milwaukee Journal Sentinel, "'The Silicon Valley of freshwater': UW System aims high, but is the money there?," 6 June 2019 The chemical contaminant PFAs is emerging as a big problem in Michigan. Ellen Knickmeyer, John Flesher And Michael Casey, Detroit Free Press, "FDA: Sampling finds toxic nonstick PFAS compounds in some food," 18 Apr. 2019 Artificial ingredients, synthetic hormones, and potential contaminants could make conception less likely and may even be harmful to a potential fetus. Suzannah Weiss, Glamour, "9 Foods to Avoid If You're Trying to Get Pregnant," 17 Apr. 2019 Older, larger fish have higher levels of mercury and PCBs because those contaminants are passed up food chains, from smaller species to bigger ones. Michael Casey, The Seattle Times, "EPA decision soon on chemical compounds tied to health risks," 12 Feb. 2019 In one jar, the teens place shards of copper in the water – with the copper acting as the experimental contaminant. Author: Perry Stein, Anchorage Daily News, "‘Hidden figures in the making’: NASA ends voting for prestigious science competition over racist attacks on students," 3 May 2018 The Environmental Protection Agency reversed course Tuesday and allowed a reporter for The Associated Press to cover a meeting on water contaminants after she was earlier grabbed by the shoulders and shoved out of the building by a security guard. David Bauder,, "EPA guards forcibly remove AP reporter from summit on contaminants," 22 May 2018 Inside the mucilage are carbohydrates and some 60 polysaccharides, or sugars, that have specific effects on different contaminants. Christina Procopiou, Newsweek, "Cactus Guts Could Rid Water of Toxins," 13 Mar. 2016

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

1922, in the meaning defined above

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Statistics for contaminant

Last Updated

15 Jun 2019

Look-up Popularity

Time Traveler for contaminant

The first known use of contaminant was in 1922

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English Language Learners Definition of contaminant

: something that makes a place or a substance (such as water, air, or food) no longer suitable for use : something that contaminates a place or substance


con·​tam·​i·​nant | \ kən-ˈtam-ə-nənt How to pronounce contaminant (audio) \

Medical Definition of contaminant

: something that contaminates

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More from Merriam-Webster on contaminant

Rhyming Dictionary: Words that rhyme with contaminant

Thesaurus: All synonyms and antonyms for contaminant

Spanish Central: Translation of contaminant

Nglish: Translation of contaminant for Spanish Speakers

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