from The American Heritage® Dictionary of the English Language, 4th Edition
- n. See bituminous coal.
from the GNU version of the Collaborative International Dictionary of English
- adj. bituminous coal, as distinguished from anthracite, or hard, coal.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. rich in tarry hydrocarbons; burns readily with a smoky yellow flame
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