heavy water definition

  • noun:
    • any one of several isotopic forms of liquid, especially deuterium oxide, that is made up mainly of molecules containing heavy hydrogen and it is made use of as a moderator in a few atomic reactors.
    • Water containing deuterium rather than typical hydrogen (image D2O); made use of as a moderator in nuclear reactors.
    • water containing a substantial proportion of deuterium atoms, found in atomic reactors

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