Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun An early type of nuclear reactor whose core consisted of alternating layers of uranium pellets and graphite bricks, designed to create a sustained fission reaction.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun physics an early nuclear reactor fuelled by uranium and moderated with graphite

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a nuclear reactor that uses controlled nuclear fission to generate energy

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

atomic + Italian pila, battery

Examples

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