/ Dictionary / Index R Réaum.: Meaning and Definition of Find definitions for: Réaum. Pronunciation: [key] Réaumur (temperature). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. reata Réaumur 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