contamination
noun
con·tam·i·na·tion
kən-ˌta-mə-ˈnā-shən 
1
: a process of contaminating : a state of being contaminated
2
Examples of contamination in a Sentence
swimming in the lake is banned until the contamination is identified and neutralized
Recent Examples on the Web
Heed posted warnings Take signs about swimming risks and possible contamination seriously.
—
Angela Haupt, Time, 23 May 2025
Six schools have closed since the start of the year due to lead contamination, and only two have reopened.
—Aria Bendix, NBC news, 22 May 2025
Related article Milwaukee announces additional school closures, new plan to address lead paint hazards as contamination crisis deepens
Andrew Nixon, director of communications for HHS, says the CDC is helping the Milwaukee health agency’s lab.
—Brenda Goodman, CNN Money, 20 May 2025
Cleanrooms are key as spacecraft are built and tested: Even tiny particles or contamination can impact delicate instruments and sensitive components.
—Doyle Rice, USA Today, 20 May 2025
See All Example Sentences for contamination
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Angela Haupt, Time, 23 May 2025
Six schools have closed since the start of the year due to lead contamination, and only two have reopened.
—Aria Bendix, NBC news, 22 May 2025
Related article Milwaukee announces additional school closures, new plan to address lead paint hazards as contamination crisis deepens
Andrew Nixon, director of communications for HHS, says the CDC is helping the Milwaukee health agency’s lab.
—Brenda Goodman, CNN Money, 20 May 2025
Cleanrooms are key as spacecraft are built and tested: Even tiny particles or contamination can impact delicate instruments and sensitive components.
—Doyle Rice, USA Today, 20 May 2025
See All Example Sentences for contamination
Cite this Entry
“Contamination.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/contamination. Accessed 1 Jun. 2025.
Copy CitationMedical Definition
contamination
noun
con·tam·i·na·tion
kən-ˌtam-ə-ˈnā-shən
1
: a process of contaminating : a state of being contaminated
2
: something that contaminates
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