deuterium

/duˈtɛriəm/
IPA guide

Definitions of deuterium
  1. noun
    an isotope of hydrogen which has one neutron (as opposed to zero neutrons in hydrogen)
    synonyms: heavy hydrogen
    see moresee less
    type of:
    isotope
    one of two or more atoms with the same atomic number but with different numbers of neutrons
    hydrogen atom
    an atom of hydrogen
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