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mother of coal

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noun

mineral charcoal.

Origin of mother of coal

First recorded in 1865–70

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for mother of coal

Historical Examples of mother of coal

There was no parting except two inches of mother-of-coal—midway, which would make it but easier to mine.
The Trail of the Lonesome Pine
John Fox, Jr.