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Definitions

carcinogen

[kahr-sin-uh-juhn, -jen, kahr-suh-nuh-jen, -noh-] / kɑrˈsɪn ə dʒən, -ˌdʒɛn, ˈkɑr sə nəˌdʒɛn, -noʊ- /
NOUN
cancer-causing agent
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The FDA formally recognized the dye as a carcinogen in 1990, banning its use in cosmetics and externally applied drugs.

From Salon • Apr. 11, 2026

The International Agency for Research on Cancer considers glyphosate, one of Roundup's ingredients, a probable human carcinogen, but Bayer says scientific studies and regulatory approvals show the weedkiller is safe.

From Barron's • Feb. 17, 2026

Its active ingredient is glyphosate, which the International Agency for Research on Cancer, a unit of the World Health Organization, identified in 2015 as a probable human carcinogen.

From BBC • Feb. 17, 2026

Some studies have found it is a likely carcinogen, and others concluded it does not pose a true cancer risk for humans.

From Los Angeles Times • Jan. 16, 2026

A substance that is not a carcinogen in the ordinary sense may disturb the normal functioning of some part of the body in such a way that malignancy results.

From "Silent Spring" by Rachel Carson



Vocabulary lists containing carcinogen


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