/ Dictionary / Index B Bryozoa: Meaning and Definition of Find definitions for: Bry•o•zo•a Pronunciation: (brī"u-zō'u), [key] — n. a phylum of invertebrates comprising about 4000 marine and freshwater species of bryozoans. Cf. Ectoprocta, Entoprocta. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: bryozoa (Thesaurus) bryophyte bryozoan Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language