/ Dictionary / Index R rhodamine: Meaning and Definition of Find definitions for: rho•da•mine Pronunciation: (rō'du-mēn", -min), [key] — n. Chem. a red dye obtained by heating an alkyl aminophenol with phthalic anhydride. any of various related dyes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Rhoda Rhode Island Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language