Synizesis
Pronunciation : Syn`i*ze"sis
Part of Speech : n.
Etymology : [L., fr. Gr.
Definition : 1. (Med.)
Defn: An obliteration of the pupil of the eye.
2. (Gram.)
Defn: A contraction of two syllables into one; synecphonesis.
Source : Webster's Unabridged Dictionary, 1913