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pyrobitumen

[ pahy-roh-bi-too-muhn, -tyoo-, -bich-oo- ]

noun

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


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Other Words From

  • pyro·bi·tumi·nous pyro·bi·tumi·noid adjective

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Word History and Origins

Origin of pyrobitumen1

First recorded in 1900–05; pyro- + bitumen

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pyropyroborate