| a toxic agent that damages DNA molecules in genes, causing mutations, tumors, etc. |
ge·no·tox·in  (jē'nə-tŏk'sĭn) n. A chemical or other agent that damages cellular DNA, resulting in mutations or cancer. [New Latin geno-, gene (from Greek genos, race, offspring; see genə- in Indo-European roots) + toxin.] ge'no·tox'ic adj., ge'no·tox·ic'i·ty (-sĭs'ĭ-tē) n. |
əˈtɒk