Carcinogen

any substance or agent that tends to produce a cancer.
Contemporary Examples

The coal ash deposits have heavy concentrations of hexavalent chromium, a carcinogen.
Chris Hedges and Joe Sacco Chronicle Mining Catastrophes in West Virginia Chris Hedges, Joe Sacco June 13, 2012

One study found it to be 30 times more potent a carcinogen.
The Fireplace Delusion: A Metaphor for Religious Belief Sam Harris February 2, 2012

Further, estrogen or carcinogen exposure over a lifetime leads to the development of cancer.
How Mom’s Hip Size Predicts Her Daughter’s Risk Kent L. Thornburg, PhD October 23, 2009

noun
(pathol) any substance that produces cancer
n.

“cancer-causing substance,” 1853, from carcinoma + -gen.

carcinogen car·cin·o·gen (kär-sĭn’ə-jən, kär’sə-nə-jěn’)
n.
A cancer-causing substance or agent.
car’cin·o·gen’ic (kär’sə-nə-jěn’ĭk) adj.
carcinogen
(kär-sĭn’ə-jən)
A substance or agent that can cause cells to become cancerous by altering their genetic structure so that they multiply continuously and become malignant. Asbestos, DDT, and tobacco smoke are examples of carcinogens.

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