单词	heptachlor
释义	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
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