/ Thesaurus / C Synonyms of chorionic villus Find synonyms for: Noun1. chorionic villus, villususage: one of the tiny villi that stick out of the fetal chorion and combine with the mother's uterine tissue to form the placentaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: jugular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language