pyrobitumen
[pahy-roh-bi-too-muh n, -tyoo-, -bich-oo-]
- any of the dark, solid hydrocarbons including peat, coal, and bituminous shale.
Origin of pyrobitumen
First recorded in
1900–05; pyro- +
bitumenDictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
