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.
All ByHeart products have tested negative for any contaminants. Escher Walcott, PEOPLE, 9 Nov. 2025 The same physics led to metals and plastics that resist dust and other contaminants. Carl Zimmer, New York Times, 9 Nov. 2025 Officials warned that this loss of pressure may allow contaminants, including fecal material and disease-causing organisms, to enter the water supply through cracks or joints in the pipes. Anna Skinner, MSNBC Newsweek, 5 Nov. 2025 However, the coffee coming out the other end has almost two-thirds more of these contaminants, Abdallah found. Matt Fuchs, Time, 5 Nov. 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 17 Nov. 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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