hep.ta.chlorn.(名词)A white or tan powder, C0H 5Cl 7, formerly used as a pesticide, that is highly toxic to humans and is a suspected carcinogen. 七氯,庚氯:白色或茶色粉末,C0H 5C 7,曾用作杀虫剂,对人有高毒性并可能是致癌物质 来源:hepta- hepta- chlor(ine)chlor(ine)