Variant of coke
- coal from which most of the gases have been removed by heating: it burns with intense heat and little smoke, and is used as an industrial fuel
- a solid residue left after the distillation of petroleum or other liquid hydrocarbons
Origin: ; from Middle English colke, core, charcoal (the unconsumed “core” of burned wood) ; from Indo-European an unverified form gel-ĝ-, rounded ; from base an unverified form gel-: see claw
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