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

noun Chemistry.

a yellow, crystalline aromatic carcinogenic hydrocarbon, C20H12, consisting of five fused benzene rings, produced by incomplete combustion of organic material, as coal, petroleum, or tobacco.

Nearby words

  1. benzoin,
  2. benzol,
  3. benzonatate,
  4. benzonitrile,
  5. benzophenone,
  6. benzoquinone,
  7. benzosulfimide,
  8. benzothiadiazide,
  9. benzotrichloride,
  10. benzotrifluoride

Also benz·py·rene [benz-pahy-reen, benz-pahy-reen] /bɛnzˈpaɪ rin, ˌbɛnz paɪˈrin/.

Origin of benzopyrene

1925–30; benzo- or benz- + pyrene2 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for benzopyrene


[ bĕn′zō-pīrēn′, -pī-rēn ]


A yellow, crystalline, aromatic hydrocarbon that is a carcinogen found in coal tar and cigarette smoke.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.