Definition of chiasm
English to English noun - an intersection or crossing of two tracts in the form of the letter X
source: WordNet 3.0 - A commissure; especially, the optic commissure, or crucial union of the optic nerves.
source: Webster 1913
Visual Synonyms 
Nearby Word
chiasm, chiasma, chasmy, cham, china, chime, chian, chinaman, cim, caseum, chammy, chacma, cam, chunam, chessom, chimney, chicano, chamaea, caesium, chicane
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