Chiasm
Pronunciation : Chi"asm, Chi*as"ma
Part of Speech : n.
Etymology : [NL. chiasma, fr. Gr. (Anat.)
Definition : Defn: A commissure; especially, the optic commissure, or crucial union of the optic nerves. -- Chi*as"mal (, a..
Source : Webster's Unabridged Dictionary, 1913
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