contaminant

noun

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

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.
Independent testing confirms that the supplement contains the ingredients listed on the label and is free from harmful contaminants. Health, 28 July 2025 Researchers blamed stormwater runoff, droppings from waterfowl like gulls and geese, and poor water circulation to move contaminants out. Rose Androwich, jsonline.com, 27 July 2025 Wood chips, because of their rich composition of natural organic compounds, have also been shown to remove contaminants. Boluwatife S. Olubusoye, The Conversation, 22 July 2025 The Environmental Working Group (EWG)'s water contaminant database shows some harmful contaminants are present in drinking water cross the country at levels higher than the EPA's maximum contaminant levels. Jasmine Laws, MSNBC Newsweek, 16 July 2025 See All Example Sentences for contaminant

Word History

First Known Use

1922, in the meaning defined above

Time Traveler
The first known use of contaminant was in 1922

Browse Nearby Words

Cite this Entry

“Contaminant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/contaminant. Accessed 6 Aug. 2025.

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

Last Updated: - Updated example sentences
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