contaminant

noun
con·​tam·​i·​nant | \ kən-ˈta-mə-nənt \

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

And in some ways, our actions on PCBs are forging a path for other pollutants to follow; the PCB bans were instrumental in helping to bring about regulations for other contaminants. Cathleen O'grady, Ars Technica, "A decades-old pollutant is still threatening orca populations," 28 Sep. 2018 Testing by state and federal regulators of soil and water for contaminants largely was limited to Superfund toxic waste sites. Alex Stuckey, Houston Chronicle, "Activists want Abbott to better protect Texans from pollution in case of another Harvey," 1 June 2018 CCWA’s Water Quality staff performs more than 200,000 water tests each year to test for potential contaminants. Pamela Miller, ajc, "Clayton water met, exceeded standards for 2017," 29 May 2018 The process didn’t use heat or pressure, so contaminants didn’t melt into the plastic and could be filtered out. Saabira Chaudhuri, WSJ, "Plastic Water Bottles, Which Enabled a Drinks Boom, Now Threaten a Crisis," 12 Dec. 2018 Cover Your Pool A pool cover can be used in the winter months to prevent contaminants from falling into your pool and also protects it from sunlight and algae. Timothy Dahl, Popular Mechanics, "How to Winterize Your Pool," 25 Oct. 2018 However, the decline of the whales can’t be pegged, experts say, to contaminants alone. New York Times, "Orcas of the Pacific Northwest Are Starving and Disappearing," 9 July 2018 State officials now say that the city’s water meets federal standards for lead and other contaminants. Beth Mole, Ars Technica, "Flint water crisis: Michigan health director ordered to manslaughter trial," 21 Aug. 2018 Department of Natural Resources test results showed high levels of arsenic, lead and other contaminants at the source of a spill at the Hi-Crush mine near Whitehall in western Wisconsin. Washington Post, "Tests show toxic heavy metals near Wisconsin sand mine spill," 7 June 2018

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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Last Updated

12 Jan 2019

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Time Traveler for contaminant

The first known use of contaminant was in 1922

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More Definitions for contaminant

contaminant

noun

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

contaminant

noun
con·​tam·​i·​nant | \ kən-ˈtam-ə-nənt \

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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