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.
The LifeStraw Go Stainless-steel Water Filter Bottle, which can filter bacteria, parasites, or other contaminants from your water, is also on sale for under $40. Jasmine Gomez, Travel + Leisure, 15 Nov. 2025 To be sold in Florida, a hemp product must have an independent testing lab certify that there aren’t contaminants or an unauthorized level of delta-9 THC. Romy Ellenbogen, Miami Herald, 14 Nov. 2025 This not only includes mucus and crust, but also the virus itself, along with allergens and other environmental contaminants. Mary J. Scourboutakos, The Conversation, 14 Nov. 2025 The shelter-in-place order was gradually diminished in the hours following the accident, but contaminants have since leached into the surrounding area. Staff, Louisville Courier Journal, 14 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 22 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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