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benzopyrene

American  
[ben-zoh-pahy-reen, -pahy-reen] / ˌbɛn zoʊˈpaɪ rin, -paɪˈrin /
Also benzpyrene

noun

Chemistry.
  1. a yellow, crystalline aromatic carcinogenic hydrocarbon, C 20 H 12 , consisting of five fused benzene rings, produced by incomplete combustion of organic material, as coal, petroleum, or tobacco.


Etymology

Origin of benzopyrene

1925–30; benzo- or benz- + pyrene 2