/ Thesaurus / O Synonyms of os palatinum Find synonyms for: Noun1. palatine, palatine bone, os palatinum, bone, osusage: either of two irregularly shaped bones that form the back of the hard palate and helps to form the nasal cavity and the floor of the orbitsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: ontiguous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language