/ Dictionary / Index R rubellite: Meaning and Definition of Find definitions for: ru•bel•lite Pronunciation: (r-bel'īt, r'bu-līt"), [key] — n. a deep-red variety of tourmaline, used as a gem. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rubella Ruben 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