/ Thesaurus / O Synonyms of os lunatum Find synonyms for: Noun1. lunate bone, semilunar bone, os lunatum, carpal bone, carpal, wrist boneusage: one of the eight small wrist bonesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: diaphanous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language