benzopyrenePronunciation: /ˌbɛnzə(ʊ)ˈpʌɪriːn/Definition of benzopyrene noun [mass noun] Chemistry a compound which is the major carcinogen present in cigarette smoke, and also occurs in coal tar. A polycyclic aromatic hydrocarbon; chemical formula: C20H12 benzopyrene in other Oxford dictionaries Definition of benzopyrene in the US English dictionary
