fu·el (fy   l)n. 1. Something consumed to produce energy, especially: a. A material such as wood, coal, gas, or oil burned to produce heat or power. b. Fissionable material used in a nuclear reactor. c. Nutritive material metabolized by a living organism; food. 2. Something that maintains or stimulates an activity or emotion: "Money is the fuel of a volunteer organization" (Natalie de Combray). v. fu·eled also fu·elled, fu·el·ing also fu·el·ling, fu·els also fu·els v.tr. 1. To provide with fuel. 2. To support or stimulate the activity or existence of: rhetoric that fueled the dissenters. v.intr. To take in fuel. [Middle English feuel, from Old French fouaille, feuaile, from Vulgar Latin *foc  lia, neuter pl. of *foclis, of the hearth or fireplace, from Latin focus, hearth, fireplace.]fu el·er n. |
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