Breadcrumb Home > Thesaurus > C Synonyms of cyst Find synonyms for: Noun 1. cyst, pathology usage: a closed sac that develops abnormally in some body structure 2. vesicle, cyst, sac usage: a small anatomically normal sac or bladderlike structure (especially one containing fluid) WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of cyst (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: terraincognita Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language