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fission

fis·sion

UK/ˈfɪʃən/ US/ˈfɪʒən/ uncommon

noun

1.

a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy

Synonyms
2.

reproduction of some unicellular organisms by division of the cell into two more or less equal parts

Origin

Borrowed from Latin fissiōnem, accusative singular of fissiō (“the act of breaking up”), from findō (“split, divide”).

Phrases

  • atomic fission
  • binary fission
  • fission bomb
  • fission fragment
  • fission product
  • fission rocket
  • fission-fusion society
  • induced fission

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WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.