IPA: /ˈnjuːklɪər/
KK: /ˈnjuːklɪr/
Related to the nucleus of an atom or the energy produced by atomic reactions. It can also refer to weapons that use atomic energy.
The country is investing in nuclear energy to reduce its reliance on fossil fuels.
Nuclear → It is formed from "nucleus" (from Latin *nucleus*, meaning kernel or core) and the suffix "-ar" (meaning pertaining to). The word "nuclear" refers to something that pertains to the core or center, particularly in the context of atomic energy or reactions.
Think of the word 'nucleus' which means the core or center of an atom — that's why 'nuclear' relates to things that are about the core of atoms.