Meaning of benzopyrene

ben•zo•py•rene

Pronunciation: (ben"zō-pī'rēn, -pī-rēn'), [key]
— n. Chem.
  1. a yellow, crystalline aromatic carcinogenic hydrocarbon, CH, consisting of five fused benzene rings, produced by incomplete combustion of organic material, as coal, petroleum, or tobacco.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.