contaminated

adjective

con·​tam·​i·​nat·​ed kən-ˈta-mə-ˌnā-təd How to pronounce contaminated (audio)
Synonyms of contaminatednext
1
: soiled, stained, corrupted, or infected by contact or association
a contaminated wound
Urine and feces of infected cats and contaminated clothing, bedding, food bowls or toys are also possible modes of transmission.Cat Fancy
2
: made unfit for use by the introduction of unwholesome or undesirable elements
Botulinum toxin is a highly lethal substance which causes death … when contaminated food is improperly canned or stored.John Laffin
… the material could be used as a filter for cleaning contaminated drinking water.Alexandra Goho

Examples of contaminated in a Sentence

the hospitals had no choice but to throw out the contaminated blood supply
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.
Simple, inexpensive steps — washing hands, replacing contaminated curtains, removing unnecessary devices — have proven track records of reducing infections, saving lives and lowering costs. Karina Nicholas, Boston Herald, 28 Nov. 2025 As Thanksgiving is upon us, millions of Americans are getting ready to cook mountains of food and trying new recipes, but beware, as food recalls for contaminated products are currently underway. Fernando Cervantes Jr, USA Today, 24 Nov. 2025 At least four families have sued infant formula maker ByHeart saying their babies contracted botulism from contaminated formula, as the company faces ongoing scrutiny from federal investigators and a separate class action lawsuit filed last week. Aria Bendix, NBC news, 22 Nov. 2025 Ice scoop was coated with white, slime-like buildup and lying in contaminated ice. Mackensy Lunsford, Nashville Tennessean, 11 Nov. 2025 See All Example Sentences for contaminated

Word History

Etymology

from past participle of contaminate

First Known Use

1576, in the meaning defined at sense 1

Time Traveler
The first known use of contaminated was in 1576

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Cite this Entry

“Contaminated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/contaminated. Accessed 17 Dec. 2025.

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