/ Dictionary / Index R rotifer: Meaning and Definition of Find definitions for: ro•ti•fer Pronunciation: (rō'tu-fur), [key] — n. any microscopic animal of the phylum (or class) Rotifera, found in fresh and salt waters, having one or more rings of cilia on the anterior end. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: rotifer (Thesaurus) rôti* Rotifera Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language