Fuel (?), n. [OF. fouail, fuail, or fouaille, fuaille, LL. focalium, focale, fr. L. focus hearth, fireplace, in LL., fire. See Focus.] [Formerly written also fewel.] 1. Any matter used to produce heat by burning; that which feeds fire; combustible matter used for fires, as wood, coal, peat, etc.
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2. Anything that serves to feed or increase passion or excitement.
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Artificial fuel, fuel consisting of small particles, as coal dust, sawdust, etc., consolidated into lumps or blocks.
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