coal (k l)n.1. a. A natural dark brown to black graphitelike material used as a fuel, formed from fossilized plants and consisting of amorphous carbon with various organic and some inorganic compounds. b. A piece of this substance. 2. A glowing or charred piece of solid fuel. 3. Charcoal. v. coaled, coal·ing, coals v.tr.1. To burn (a combustible solid) to a charcoal residue. 2. To provide with coal.
[Middle English col, from Old English.] |
coal Noun
1. a compact black or dark brown rock consisting largely of carbon formed from partially decomposed vegetation: a fuel and a source of coke, coal gas, and coal tar
2. one or more lumps of coal
3. coals to Newcastle something supplied to a place where it is already plentiful [Old English col]
coal (k l) A dark-brown to black solid substance formed from the compaction and hardening of fossilized plant parts in the presence of water and in the absence of air. Carbonaceous material accounts for more than 50 percent of coal's weight and more than 70 percent of its volume. Coal is widely used as a fuel, and its combustion products are used as raw material for a variety of products including cement, asphalt, wallboard and plastics. See more at anthracitebituminous coallignite |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. | coal - fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous periodatomic number 6, carbon, C - an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds fossil fuel - fuel consisting of the remains of organisms preserved in rocks in the earth's crust with high carbon and hydrogen content steam coal - coal suitable for use under steam boilers vegetable matter - matter produced by plants or growing in the manner of a plant |
| 2. | coal - a hot fragment of wood or coal that is left from a fire and is glowing or smolderingfragment - a piece broken off or cut off of something else; "a fragment of rock" |
| Verb | 1. | coal - burn to charcoal; "Without a drenching rain, the forest fire will char everything"combust, burn - cause to burn or combust; "The sun burned off the fog"; "We combust coal and other fossil fuels" |
| 2. | coal - supply with coal |
| 3. | coal - take in coal; "The big ship coaled" |
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