/ Thesaurus / M Synonyms of marginocephalian Find synonyms for: Noun1. Marginocephalia, suborder Marginocephalia, marginocephalian, animal orderusage: includes boneheaded (pachycephalosaurs) and horned (ceratopsian) dinosaursWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language