nuclear (Adjective) — (weapons) deriving destructive energy from the release of atomic energy. ex. "nuclear war"
nuclear (Adjective) — (physics) of or relating to or constituting the nucleus of an atom. ex. "nuclear physics" ex. "nuclear fission" ex. "nuclear forces"
nuclear (Adjective) — (biology) of or relating to or constituting the nucleus of a cell. ex. "nuclear membrane" ex. "nuclear division"
nuclear (Adjective) — Constituting or like a nucleus. ex. "annexation of the suburban fringe by the nuclear metropolis" ex. "the nuclear core of the congregation"