semibituminous coal

[sem-ee-bi-too-muh-nuhs, -tyoo-, sem-ahy-, sem-ee-, sem-ahy-]

noun

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

Word History and Origins

Origin of semibituminous coal¹

First recorded in 1855–60; semi- + bituminous

Example Sentences

Semibituminous coal may be defined as coal having a fuel ratio ranging from 3 to 7.

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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.

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