fissiparity
  裂殖; 分裂繁殖
  Fis·si·par·i·ty n. Biol. Quality of being fissiparous; fissiparism.
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  fissiparity
       n 1: reproduction of some multicellular organisms by division, as
            in the case of some starfish
       2: the tendence to break into parts; "the fissipairty of
          religious sects"