Spontaneous fission Synonyms

Definitions for Spontaneous


  • (adjective) done instantly and without conscious thought or decision
  • (adjective) said or done without having been planned or written in advance
  • (adjective) happening or arising without apparent external cause

Definitions for Fission


  • (noun) reproduction of some unicellular organisms by division of the cell into two more or less equal parts
  • (noun) a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy