nuclide
nu·clide
noun \ˈn(y)ü-ˌklīd\Definition of NUCLIDE
: a species of atom characterized by the constitution of its nucleus and hence by the number of protons, the number of neutrons, and the energy content
—nu·clid·ic \n(y)ü-ˈklid-ik\ (audio pronunciation) adjective
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