'nuclear energy' definitions:

Definition of 'nuclear energy'

From: WordNet
noun
The energy released by a nuclear reaction [syn: atomic energy, nuclear energy]

Definition of 'nuclear energy'

From: GCIDE
  • nuclear energy \nuclear energy\ n. Energy derived from nuclear reactions; -- used at present especially of electrical power generated in atomic reactors, but encompassing also fusion energy.
  • Syn: atomic energy, atomic power, nuclear energy, nuclear power. [WordNet 1.5]