/ Thesaurus / P Synonyms of plexus periarterialis Find synonyms for: Noun1. periarterial plexus, plexus periarterialis, nerve plexususage: an autonomic plexus that accompanies an arteryWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: reticent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language