Definition of coal Coal
/kowËl/ - [kowl] - coal
We found 24 definitions of coal from 7 different sources.
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What does coal mean?
WordNet
NounPlural: coal |
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| coal - fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period | ||
| fossil fuel fuel consisting of the remains of organisms preserved in rocks in the earth's crust with high carbon and hydrogen content | ||
| vegetable matter matter produced by plants or growing in the manner of a plant | ||
| anthracite, anthracite coal, hard coal a hard natural coal that burns slowly and gives intense heat | ||
| bituminous coal, soft coal rich in tarry hydrocarbons; burns readily with a smoky yellow flame | ||
| brown coal, lignite, wood coal intermediate between peat and bituminous coal | ||
| coal - a hot fragment of wood or coal that is left from a fire and is glowing or smoldering | ||
| ember | ||
| fragment an incomplete piece; "fragments of a play" | ||
Verb |
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| coal - take in coal; "The big ship coaled" | ||
| gather in, take in make (clothes) smaller; "Please take in this skirt--I've lost weight" | ||
| coal - supply with coal | ||
| furnish, supply, provide, render provide or equip with furniture; "We furnished the house in the Biedermeyer style" | ||
| coal - burn to charcoal; "Without a drenching rain, the forest fire will char everything" | ||
| char | ||
| combust, burn cause to become violent or angry; "Riots combusted Pakistan after the U.S. air attacks on Afghanistan" | ||
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Wiktionary 
- coal (Noun)
A black rock formed from prehistoric plant remains, composed largely of carbon and burned as a fuel. - coal (Noun)
A piece of coal used for burning. Note that in British English the first of the following examples would usually be used, whereas in American English the latter would. - coal (Noun)
A type of coal, such as bituminous, anthracite, or lignite, and grades and varieties thereof. - coal (Noun)
A smouldering piece of material. - coal (Verb)
To take on a supply of coal usually of steam ships. - coal (Verb)
To be converted to charcoal. - coal (Verb)
To burn to charcoal; to char. - coal (Verb)
To mark or delineate with charcoal. - coal (Verb)
To supply with coal.
Webster DictionaryWebster's Unabridged Dictionary đ
- coal (n.)
A thoroughly charred, and extinguished or still ignited, fragment from wood or other combustible substance; charcoal. - coal (n.)
A black, or brownish black, solid, combustible substance, dug from beds or veins in the earth to be used for fuel, and consisting, like charcoal, mainly of carbon, but more compact, and often affording, when heated, a large amount of volatile matter. - coal (v. t.)
To burn to charcoal; to char. - coal (v. t.)
To mark or delineate with charcoal. - coal (v. t.)
To supply with coal; as, to coal a steamer. - coal (v. i.)
To take in coal; as, the steamer coaled at Southampton.
OmegaWiki DictionaryOmegaWiki Dictionary Ί
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coal
The natural, rocklike, brown to black derivative of forest-type plant material, usually accumulated in peat beds and progressively compressed and indurated until it is finally altered in to graphite-like material.
Chambers DictionaryChamber's 20th Century Dictionary đ
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coal
kĹl, n. a solid, black, combustible substance used for fuel, dug out of the earth: cinder.âv.i. to take in coal.âv.t. to supply with coal.ân. Coalâ˛-bed, a stratum of coal.âadj. Coalâ˛-black, black as coal, very black.âns. Coalâ˛-box, a box for holding coal; Coalâ˛-brass, a name applied to the pyrites in the coal-measures; Coalâ˛field, a field or district containing coal strata; Coalâ˛-fish, a fish of the cod family, so named from the black colour of its back; Coalâ˛-gas, the mixture of gases produced by the destructive distillation of coal, chiefly carburetted hydrogenâgiving the gaslight in common use; Coalâ˛-heavâ˛er, one employed in carrying coal; Coalâ˛-house, a covered-in place for keeping coal; Coalâ˛man, one who has to do with coals; Coalâ˛-masâ˛ter, the owner or lessee of a coalfield; Coalâ˛-measâ˛ure, a measure by which the quantity of coal is ascertained: (pl.) the group of carboniferous strata in which coal is found (geol.); Coalâ˛-mine, Coalâ˛-pit, a pit or mine from which coal is dug; Coalâ˛-ownâ˛er, one who owns a colliery; Coalâ˛-plant, a fossil plant of the carboniferous strata; Coalâ˛-scuttâ˛le, a vessel for holding coal; Coalâ˛-tar, or Gas-tar, a thick, black, opaque liquid which condenses in the pipes when coal or petroleum is distilled; Coalâ˛-trimâ˛mer, one who stores or shifts coal on board vessels; Coalâ˛-whipâ˛per, one employed in unloading coal from vessels at anchor to barges which convey it to the wharves.âadj. Coalâ˛y, of or like coal.âCoaling station, a port at which steamships take in coal; Coal-scuttle bonnet, a woman's bonnet, shaped like a coal-scuttle upside down.âBlind or Anthracite coal, that which does not flame when kindled; Bituminous coal, that which does; Brown coal (see Brown); Caking coal, a bituminous coal which cakes or fuses into one mass in the fire; Cannel or Parrot coal (see Cannel); Cherry or Soft coal, coal breaking off easily into small, irregular cubes, having beautiful shining lustre; Splint, Hard, or Block coal, plentiful in Scotland, hard, breaking into cuboidal blocks.âBlow the coals, to excite passion; Carry coals to Newcastle, to take a thing where it is least needed; Haul over the coals, reprimandâfrom the discipline applied to heretics; Heap coals of fire on the head, to excite remorse by returning good for evil (Rom. xii. 20). [A.S. col; cog. with Ice. kol, Ger. kohle.]
Wikipedia 
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Coal is a black solid fossil fuel. It is usually very hard. Coal is made of 65%-95% carbon. It also has hydrocarbons and some other compounds in it. It is formed from the remains of plants that lived millions of years ago. Similar substance made from wood by heating it in airless space is called charcoal.
Coal can be burned for energy or heat. About two-thirds of the coal mined today is burned in power stations to make electricity. Burning it is not as common as it used to be, because it causes much pollution.
Coal can be dry-distilled (heated in high temperature in a place where there is no oxygen) to produce coke. Coke is even better fuel than coal, and coke can be used in smelting for reducing metals from ores.
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