Definitions
from The Century Dictionary.
- Partly bituminous, as coal.
Etymologies
Sorry, no etymologies found.
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Examples
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_ The name "semibituminous" is exceedingly unfortunate, as literally it implies that this coal is half the rank of bituminous, whereas it is applied to a kind of coal that is of higher rank than bituminous -- really superbituminous.
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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.
Lippincott's Magazine of Popular Literature and Science Volume 17, No. 101, May, 1876 Various
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Cretaceous age, and of Tertiary lignites which have locally been converted by mountain upbuilding into bituminous and semibituminous coals.
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There are also all gradations connecting the hardest anthracite -- through semibituminous coal, bituminous or soft coal, lignite (an imperfect coal in which sometimes woody fibers may be seen little changed) -- with peat and decaying vegetable tissues.
The Elements of Geology William Harmon Norton 1900
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