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Definition of Coal
1. Verb. Burn to charcoal. "Without a drenching rain, the forest fire will char everything"
2. Noun. Fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period.
Generic synonyms: Fossil Fuel, Vegetable Matter
Specialized synonyms: Anthracite, Anthracite Coal, Hard Coal, Bituminous Coal, Soft Coal, Brown Coal, Lignite, Wood Coal, Steam Coal
3. Verb. Supply with coal.
4. Noun. A hot fragment of wood or coal that is left from a fire and is glowing or smoldering.
5. Verb. Take in coal. "The big ship coaled"
Definition of Coal
1. n. A thoroughly charred, and extinguished or still ignited, fragment from wood or other combustible substance; charcoal.
2. v. t. To burn to charcoal; to char.
3. v. i. To take in coal; as, the steamer coaled at Southampton.
Definition of Coal
1. Noun. A black rock formed from prehistoric plant remains, composed largely of carbon and burned as a fuel. ¹
2. 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. ¹
3. Noun. A type of coal, such as bituminous, anthracite, or lignite, and grades and varieties thereof. ¹
4. Noun. A smouldering piece of material. ¹
5. Verb. To take in coal; as, the steamer coaled at Southampton. ¹
6. Verb. To be converted to charcoal. ¹
¹ Source: wiktionary.com
Definition of Coal
1. to supply with coal (a carbon fuel) [v -ED, -ING, -S]
Medical Definition of Coal
1. A natural fuel formed by partial decomposition of vegetable matter under certain environmental conditions. (12 Dec 1998)