Source : Webster's Revised Unabridged Dictionary (1913)

Fissiparity \Fis`si*par"i*ty\, n. (Biol.)
   Quality of being fissiparous; fissiparism.

Source : WordNet®

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"