/ Thesaurus / S Synonyms of scyphozoa Find synonyms for: Noun1. Scyphozoa, class Scyphozoa, classusage: coelenterates in which the polyp stage is absent or at least inconspicuous: jellyfishesNoun1. Scyphozoa, class Scyphozoa, classusage: any of various usually free-swimming marine coelenterates having a gelatinous medusoid stage as the dominant phase of its life cycleWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language