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pyrobitumen

American

[pahy-roh-bi-too-muhn, -tyoo-, -bich-oo-] / ˌpaɪ roʊ bɪˈtu mən, -ˈtju-, -ˈbɪtʃ ʊ- /

noun

any of the dark, solid hydrocarbons including peat, coal, and bituminous shale.

Other Word Forms

Etymology

Origin of pyrobitumen

First recorded in 1900–05; pyro- + bitumen

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

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.