/ Thesaurus / S Synonyms of subkingdom metazoa Find synonyms for: Noun1. Metazoa, subkingdom Metazoa, subkingdomusage: multicellular animals having cells differentiated into tissues and organs and usually a digestive cavity and nervous systemWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language