/ Thesaurus / S Synonyms of superior thyroid vein Find synonyms for: Noun1. superior thyroid vein, thyroid vein, vena thyroideausage: a vein on each side that drains the upper part of the thyroid and empties into the internal jugular veinWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language