/ Thesaurus / V Synonyms of vena hemiazygos accessoria Find synonyms for: Noun1. accessory hemiazygos vein, accessory hemiazygous vein, vena hemiazygos accessoria, vein, vena, venous blood vesselusage: a vein formed by the union of the 4th to 7th posterior intercostal veins; empties into the azygos veinWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: rotund Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language