/ Dictionary / Index R -rhiza: Meaning and Definition of Find definitions for: -rhiza Pronunciation: [key] var. of Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rhinovirus rhizo- Related Content Daily Word Quiz: morose Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language