Definitions:

1. (weapons) deriving destructive energy from the release of atomic energy adjective
   • nuclear war
2. constituting or like a nucleus adjective
   • annexation of the suburban fringe by the nuclear metropolis
3. of or relating to or constituting the nucleus of a cell adjective
   • nuclear membrane
4. of or relating to or constituting the nucleus of an atom adjective
   • nuclear physics

Synonyms:

• atomic