fission fission  /ˈfɪ ʃən/


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


  1. If fission had come to light in the mid-1930s, while the democracies still slept, Nazi Germany would have won a long lead toward building an atom bomb.
  2. Stockholders willing, a corporate fission will occur this autumn in a notable aviation name.
  3. It does not seem likely that much can be done to reduce the total quantity of the fission products.



  1. "It has given us the capability to build deterrence based on both fission and thermonuclear weapon systems from modest to all the way up to 200 kilotons and possibility of meeting all our security requirements," Kakodkar added.
    on Sep 24, 2009 By: Anil Kakodkar Source: Associated Press of Pakistan

  2. "We don't know how long it takes for hominids to fission off into separate species, but clearly they were separated for a very long time,"" said Dr. Spencer Wells, director of the Genographic Project. "They came back together again during the...
    on Apr 25, 2008 By: Spencer Wells Source: Tehran Times

  3. "Nasa's spaceships would evolve into luxurious interplanetary passenger liners," says Barbrook. "General Electric's nuclear fission reactors would become fusion plants providing limitless energy for all. IBM's computers were prototypes of...
    on Jun 6, 2007 By: Richard Barbrook Source:

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pacify pacify
/ˈpæ sə ˌfaɪ /