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Meaning of thermonuclear reaction

thermonu'clear reac'tion

Pronunciation: [key]
— Chem., Physics. Chem.,Physics.
  1. a nuclear-fusion reaction that takes place between the nuclei of a gas, esp. hydrogen, heated to a temperature of several million degrees.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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