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nuclear fusion definition

nuclear fusion

the fusion of lightweight atomic nuclei, as of tritium or deuterium, into a nucleus of heavier mass, as of helium, with a resultant loss in the combined mass, which is converted into energy: the principle of the hydrogen bomb

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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