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semibituminous coal
[ sem-ee-bi-too-muh-nuhs, -tyoo-, sem-ahy-, sem-ee-, sem-ahy- ]
noun
- a coal intermediate between bituminous and anthracite coal in hardness, yielding the maximum heat of any ordinary steam coal.
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51Թ History and Origins
Origin of semibituminous coal1
First recorded in 1855–60; semi- + bituminous
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Example Sentences
Examples have not been reviewed.
Semibituminous coal may be defined as coal having a fuel ratio ranging from 3 to 7.
From
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
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