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.
Also, GreenLight was found to be out of compliance with state statutes when one borehole was left unfilled, creating the potential for water carrying contaminants to flow from one aquifer to another. Laura Schulte, jsonline.com, 29 Sep. 2025 Conversely, the rooms can be configured to draw air in to contain contaminants from contagious patients, such as those who may have tuberculosis or another transferable illness, according to hospital officials. Beth Warren, Nashville Tennessean, 25 Sep. 2025 By merging different material detection methods, the system can identify fiber composition and contaminants—like trace amounts of spandex, nylon and acrylic below 2 percent. Alexandra Harrell, Sourcing Journal, 24 Sep. 2025 Children are especially susceptible to contaminants such as pesticides, even while in the womb, according to the American Academy of Pediatrics. Sandee Lamotte, CNN Money, 24 Sep. 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 Oct. 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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