cocarcinogen
/ˌkoʊkɑrˈsɪnədʒən/
noun
- A substance or factor that is not itself a cancer-causing agent but increases the cancer-causing effect of another substance when they are together.
- Exposure to a cocarcinogen can make a weak carcinogen much more dangerous.
- Researchers identified a common food preservative as a potential cocarcinogen.
- Some chemicals act as a cocarcinogen when combined with tobacco smoke.