semibituminous coal

American

[sem-ee-bi-too-muh-nuhs, -tyoo-, sem-ahy-, sem-ee-, sem-ahy-] / ˈsɛm i bɪˈtu mə nəs, -ˈtju-, ˈsɛm aɪ-, ˌsɛm i-, ˌsɛm aɪ- /

noun

a coal intermediate between bituminous and anthracite coal in hardness, yielding the maximum heat of any ordinary steam coal.

Etymology

Origin of semibituminous coal

First recorded in 1855–60; semi- + bituminous

Example Sentences

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semibituminous coal

Our anthracite deposits are circumscribed, but bid fair to last until the virtually untouched seams of bituminous and semibituminous coal shall be made amply accessible to every point of consumption.

From Lippincott's Magazine of Popular Literature and Science Volume 17, No. 101, May, 1876 by Various

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