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n. - (physics) any of several kinds of apparatus that maintain and control a nuclear state for the production of energy or artificial elements.

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Usage examples (35)
  • This reactor is an excellent and elegant solution to the non-polluting heat source problem.
  • Also, Tony's reactor is not visible when he wears a suit.
  • The reactor is at the Bruce Power plant near Kincardine, Ontario.
  • The reactor is safely shut down and the plant cannot restart without NRC permission.
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