Main Entry: nu·clide

Pronunciation: \ˈnü-ˌklīd, ˈnyü-\

Function: noun

Etymology: nucleus + Greek eidos form, species — more at idol

Date: 1947

: 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 \nü-ˈkli-dik, nyü-\ adjective