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semibituminous coal

[sem-ee-bi-too-muh-nuh s, -tyoo-, sem-ahy-, sem-ee-, sem-ahy-] /ˈsɛm i bɪˈtu mə nəs, -ˈtyu-, ˈsɛm aɪ-, ˌsɛm i-, ˌsɛm aɪ-/
noun
1.
a coal intermediate between bituminous and anthracite coal in hardness, yielding the maximum heat of any ordinary steam coal.
Origin
1855-1860
1855-60; semi- + bituminous
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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