carcinogen

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

NOUN

cancer-causing agent

Synonyms

STRONGEST

poison toxin

STRONG

killer mutagen

WEAK

deadly chemical health hazard

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.

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

The most notorious of the group is benzene, a known carcinogen.

From Los Angeles Times • Jan. 23, 2026

"We should have a similar campaign with tanning bed usage. The World Health Organization has deemed tanning beds to be the same level of carcinogen as smoking and asbestos. It's a class one carcinogen."

From Science Daily • Dec. 15, 2025

High Court representing more than 3,000 people alleged Johnson & Johnson, which spun off Kenvue in 2023, knowingly sold baby powder that was contaminated with asbestos, a carcinogen.

From Barron's • Oct. 17, 2025

This is why there is no “safe” dose of a carcinogen.

From "Silent Spring" by Rachel Carson