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co·car·cin·o·gen .kō-kär-'sin-ə-jən, kō-'kärs-ən-ə-.jen n an agent that aggravates the carcinogenic effects of another substance
co·car·cin·o·gen·ic .kō-.kärs-ən-ō-'jen-ik adj
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n.
a substance that enhances the effect of a carcinogen.
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co·car·cin·o·gen (ko-kahr-sinґə-jən) promoter (def. 3).Medical dictionary. 2011.