Breadcrumb Home > Thesaurus > C Synonyms of chiasma Find synonyms for: Noun 1. chiasma, chiasm, decussation, structure, anatomical structure, complex body part, bodily structure, body structure usage: an intersection or crossing of two tracts in the form of the letter X WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of chiasma (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: demagogue Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language