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[ben-zoh-pahy-reen, -pahy-reen] /ˌbɛn zoʊˈpaɪ rin, -paɪˈrin/
noun, Chemistry.
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.
Also, benzpyrene
[benz-pahy-reen, benz-pahy-reen] /bɛnzˈpaɪ rin, ˌbɛnz paɪˈrin/ (Show IPA)
Origin of benzopyrene
1925-30; benzo- or benz- + pyrene2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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benzopyrene in Medicine

benzopyrene ben·zo·py·rene (běn'zō-pī'rēn', -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.
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