contaminated

adjective

con·​tam·​i·​nat·​ed kən-ˈta-mə-ˌnā-təd How to pronounce contaminated (audio)
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, even in developed countries, 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.
So far, 96 of those samples were negative by polymerase chain reaction testing, or PCR, which detects live virus as well as inactive viral particles, indicating that those cheeses probably weren’t made with contaminated milk. Brenda Goodman, CNN, 14 Mar. 2025 Once notified of the problem, the three local governments reacted by curtailing use of their contaminated wells and relying more on uncontaminated wells. Kevin Spear, Orlando Sentinel, 28 Feb. 2025 Persons in the higher-risk categories who experience flu-like symptoms within two months after eating contaminated food should seek medical care and tell the health care provider about eating the contaminated food, says the U.S. Department of Agriculture. Mary Walrath-Holdridge, USA TODAY, 26 Feb. 2025 The illness is spread via direct contact with an infected person, touching contaminated surfaces, or eating contaminated food or drinks. Matt Robison, Newsweek, 25 Feb. 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 23 Mar. 2025.

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