/ Dictionary / Index R ripidolite: Meaning and Definition of Find definitions for: ri•pid•o•lite Pronunciation: (ri-pid'l-īt", rī-), [key] — n. a mineral of the chlorite group, essentially hydrated magnesium and aluminum silicate with some ferrous iron. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ripe rot ripieno Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language