contaminant

noun

con·​tam·​i·​nant kən-ˈta-mə-nənt How to pronounce contaminant (audio)
Synonyms of contaminantnext
: something that contaminates

Synonyms of contaminant

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Examples of contaminant in a Sentence

a filter to remove contaminants from the drinking water
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Water filters This pitcher uses Advanced Carbon Core Technology filters to remove up to three times as many contaminants as standard filters. — Bestreviews, Chicago Tribune, 19 Aug. 2026 Temporary low water pressure was monitored during the repair, with samples collected from seven locations in the affected area showing no evidence of contaminants. — Rachel Roberts, Idaho Statesman, 15 Aug. 2026 As a result, some products may contain contaminants or fail to provide the amount of protein listed, Balady says. — Martha Stewart, 12 Aug. 2026 These contaminants settle in ductwork, walls, carpets and furniture, as well as on clothing, blankets and toys. — Andrew J. Whelton, The Conversation, 11 Aug. 2026 See All Example Sentences for contaminant

Word History

Etymology

contamin(ate) + -ant entry 1

First Known Use

1922, in the meaning defined above

Time Traveler
The first known use of contaminant was in 1922

Browse Nearby Words

contakion
contaminant
contaminate
See all Nearby Words

Cite this Entry

“Contaminant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/contaminant. Accessed 22 Aug. 2026.

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Kids Definition

contaminant

noun
con·​tam·​i·​nant kən-ˈtam-ə-nənt How to pronounce contaminant (audio)
: something that contaminates

Medical Definition

contaminant

noun
con·​tam·​i·​nant kən-ˈtam-ə-nənt How to pronounce contaminant (audio)
: something that contaminates

More from Merriam-Webster on contaminant

Nglish: Translation of contaminant for Spanish Speakers

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