1. [adjective] (biology) Pertaining to the nucleus of a cell. [from 19th c.]
2. [adjective] Pertaining to a centre around which something is developed or organised; central, pivotal. [from 19th c.]
3. [adjective] Pertaining to the atomic nucleus. [from 20th c.]
4. [adjective] Involving energy released by nuclear reactions (fission, fusion, radioactive decay). [from 20th c.]
5. [adjective] Of a weapon: deriving its force from rapid release of energy through nuclear reactions. [from 20th c.]
6. [adjective] (weapons) deriving destructive energy from the release of atomic energy; 'nuclear war'; 'nuclear weapons'; 'atomic bombs'.
7. [adjective] Of or relating to or constituting the nucleus of an atom; 'nuclear physics'; 'nuclear fission'; 'nuclear forces'.
8. [adjective] Of or relating to or constituting the nucleus of a cell; 'nuclear membrane'; 'nuclear division'.
9. [adjective] Constituting or like a nucleus; 'annexation of the suburban fringe by the nuclear metropolis'; 'the nuclear core of the congregation'.
