/ Thesaurus / H Synonyms of hyperoartia Find synonyms for: Noun1. Petromyzoniformes, suborder Petromyzoniformes, Hyperoartia, suborder Hyperoartia, animal orderusage: lampreys as distinguished from hagfishesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: sylvan Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language