/ Dictionary / Index R rhe: Meaning and Definition of Find definitions for: rhe Pronunciation: (rē), [key] a centimeter-gram-second unit of fluidity, equal to the reciprocal of poise. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Rh disease rhea 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