bituminous

[ bahy-too-muh-nuh s, -tyoo-, bi- ]

/ baɪˈtu mə nəs, -ˈtyu-, bɪ- /

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SEE MORE SYNONYMS FOR bituminous ON THESAURUS.COM

adjective

resembling or containing bitumen: bituminous shale.

RELATED WORDS

midnight, dark, sable, ebony, obsidian, raven, inky, pitch-black, ebon, pitch-dark

Nearby words

bittock, bittorrent, bitty, bitumen, bituminize, bituminous, bituminous coal, bitzer, biunique, biuniqueness, biuret

Origin of bituminous

1610–20; < Latin bitūminōsus, equivalent to bitūmin- (stem of bitūmen) bitumen + -ōsus -ous

Related forms

non·bi·tu·mi·nous, adjective

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

Examples from the Web for bituminous

Five feet of wood or plant may produce about one foot of bituminous coal, or six-tenths of a foot of anthracite.
The Economic Aspect of Geology|C. K. Leith
The four counties adjoining Pittsburg turn out over thirty millions of tons of bituminous coal in a year.
America, Volume II (of 6)|Joel Cook
Bituminous may be distinguished from subbituminous by the manner of weathering.
The Economic Aspect of Geology|C. K. Leith
We have anthracite coal for but fifty years, and bituminous coal for less than two hundred.
The Fight For Conservation|Gifford Pinchot

This coal is of an inferior quality, bituminous, and largely mixed with slate.
The Atlantic Monthly, Volume 15, No. 90, April, 1865|Various