synizesis

noun3

1. •
   (rhetoric) The fusion of two syllables into one without the formation of a recognized diphthong, especially to fit a certain poetic meter.
2. •
   A dense clumping of chromosomes on one side of the nucleus of a cell, sometimes occurring prior to cell division.
3. •
   (no longer used) Occlusion of the pupil of the eye, resulting in loss of vision.