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benzopyrene

American

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

Also benzpyrene

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.

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023