[noo-klahyd, nyoo-] /ˈnu klaɪd, ˈnyu-/

noun, Physics.
an atomic species in which the atoms all have the same atomic number and mass number.
an individual atom in such a species.
a species of atom characterized by its atomic number and its mass number See also isotope

1947, from nucleus + -ide.

nuclide nu·clide (nōō’klīd’, nyōō’-)
A type of atom specified by its atomic number, atomic mass, and energy state, such as carbon 14.
nu·clid’ic (nōō-klĭd’ĭk, nyōō-) adj.
An atomic nucleus identified by its atomic element and its mass number. For example, a carbon-14 nuclide is the nucleus of a carbon atom, which has six protons, with mass number 14 (thus having eight neutrons). See also isotope.


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