Meaning of bright coal in English:
bright coal
noun
Shiny, black bituminous coal.
Origin
Late 18th century; earliest use found in John Hill (bap. 1714, d. 1775), physician and actor.
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Shiny, black bituminous coal.
Late 18th century; earliest use found in John Hill (bap. 1714, d. 1775), physician and actor.