An aromatic hydrocarbon, C20H12, found in coal tar, cigarette smoke, etc. and known to be a cause of cancer in animals.
Webster's New World
Either of two polycyclic aromatic hydrocarbons with the formula C20 H12 , found in coal tar and cigarette smoke and isolatable as a white or yellow crystalline solid. Both are hazardous, and one is known to be a potent carcinogen.
American Heritage Medicine
(organic chemistry) A polycyclic aromatic hydrocarbon (having five fused benzene rings) that is both mutagenic and carcinogenic.
Other Word Forms of Benzopyrene
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