English noun: fission | |||
1. | fission (process) reproduction of some unicellular organisms by division of the cell into two more or less equal parts | ||
Broader (hypernym) | agamogenesis, asexual reproduction | ||
Narrower (hyponym) | schizogony | ||
2. | fission (process) a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy | ||
Synonyms | nuclear fission | ||
Broader (hypernym) | nuclear reaction | ||