/ Thesaurus / P Synonyms of plexus lumbalis Find synonyms for: Noun1. lumbar plexus, plexus lumbalis, plexus, reteusage: a lymphatic plexus located along the lower portion of the aorta and iliac vessels2. lumbar plexus, plexus lumbalis, nerve plexususage: a plexus of nerves formed by the ventral branches of the first four lumbar nervesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language