/ Thesaurus / A Synonyms of actinozoa Find synonyms for: Noun1. Anthozoa, class Anthozoa, Actinozoa, class Actinozoa, classusage: a large class of sedentary marine coelenterates that includes sea anemones and corals; the medusoid phase is entirely suppressedNoun1. Anthozoa, class Anthozoa, Actinozoa, class Actinozoa, classusage: sessile marine coelenterates including solitary and colonial polyps; the medusoid phase is entirely suppressedWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acerbity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language