/ Thesaurus / O Synonyms of os hyoideum Find synonyms for: Noun1. hyoid, hyoid bone, os hyoideum, bone, osusage: a U-shaped bone at the base of the tongue that supports the tongue musclesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language