heptachlor

noun

hep·​ta·​chlor ˈhep-tə-ˌklȯr 

: a cyclodiene chlorinated hydrocarbon pesticide C₁₀H₅Cl₇ that causes liver disease in animals and is a suspected human carcinogen

Word History

Etymology

hepta- + chlorine

First Known Use

1949, in the meaning defined above

Medical Definition

heptachlor

noun

hep·​ta·​chlor ˈhep-tə-ˌklō(ə)r, -ˌklȯ(ə)r 

: a persistent cyclodiene chlorinated hydrocarbon pesticide C₁₀H₅Cl₇ that causes liver disease in animals and is a suspected human carcinogen