- cancer causing agents
- Substances that increase the risk of neoplasms in humans or animals. Both genotoxic chemicals, which affect DNA directly, and nongenotoxic chemicals, which induce neoplasms by other mechanism, are included.
Definition from: MeSH via Unified Medical Language System at the National Library of Medicine
- Any chemical that can increase the risk of neoplasms in humans or animals.
Definition from: NCI Thesaurus via Unified Medical Language System at the National Library of Medicine
- Any substance that causes cancer.
National Cancer Institute
- A carcinogen is an agent with the capacity to cause cancer in humans. Carcinogens may be natural, such as aflatoxin, which is produced by a fungus and sometimes found on stored grains, or manmade, such as asbestos or tobacco smoke. Carcinogens work by interacting with a cell's DNA and inducing genetic mutations.
Definition from: Talking Glossary of Genetic Terms from the National Human Genome Research Institute
See also Understanding Medical Terminology.