n.
A cancer-causing substance or agent.
carcinogenesis car'ci·no·gen'e·sis (kär'sə-nə-jĕn'ĭ-sĭs) n.
carcinogenic car'cin·o·gen'ic (-jĕn'ĭk) adj.
carcinogenicity car'ci·no·ge·nic'i·ty (-jə-nĭs'ĭ-tē) n.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.