Breadcrumb Home > Thesaurus > E Synonyms of ethmoid Find synonyms for: Noun 1. ethmoid, ethmoid bone, bone, os usage: one of the eight bones of the cranium; a small bone filled with air spaces that forms part of the eye sockets and the nasal cavity WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of ethmoid (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: anomie Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language