/ Dictionary / Index M Metazoa: Meaning and Definition of Find definitions for: Met•a•zo•a Pronunciation: (met"u-zō'u), [key] — n. a zoological group comprising the multicellular animals. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: metazoa (Thesaurus) métayer Metchnikoff Related Content Daily Word Quiz: sequester Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language