coal 1
noundomain: substance
Princeton WordNet [ver.3.1]
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EnglishDefinition
fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period
Hypernym
fossil fuel 1
noun
fuel consisting of the remains of organisms preserved in rocks in the earth's crust with high carbon and hydrogen content
matter produced by plants or growing in the manner of a plant
Substance_meronym
carbon 1
noun
an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds
EnglishDerivationally related form
Hyponym
anthracite 1
noun
a hard natural coal that burns slowly and gives intense heat
rich in tarry hydrocarbons; burns readily with a smoky yellow flame
lignite 1
noun
intermediate between peat and bituminous coal
steam coal 1
noun
coal suitable for use under steam boilers
shungite 1
noun
a black, lustrous, non-crystalline mineraloid consisting of more than 98 weight percent of carbon.
Substance_holonym
carbon 1
noun
an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds
