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Definition of "fuel" []

  • Something consumed to produce energy, especially: (noun)
  • A material such as wood, coal, gas, or oil burned to produce heat or power. (noun)
  • Fissionable material used in a nuclear reactor. (noun)
  • Nutritive material metabolized by a living organism; food. (noun)
  • Something that maintains or stimulates an activity or emotion: "Money is the fuel of a volunteer organization” ( Natalie de Combray). (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "fuel" in a sentence
  • "Fossil fuel is a word made up by the Devil and promoted by the liberal media … all clear bobcat?"
  • "Each man had three strips, one for barley, one for wheat and one for grass, besides a right to pasture a cow or a pig and obtain fuel from the common fields."
  • "When the average person hears the term fuel cell, typically what comes to mind is something that mysteriously makes electricity from hydrogen."