/ Dictionary / Index R Rotifera: Meaning and Definition of Find definitions for: Ro•tif•er•a Pronunciation: (rō-tif'ur-u), [key] — n. the phylum or class comprising the rotifers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: rotifera (Thesaurus) rotifer rotiform Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language