/ Dictionary / Index A aureolin: Meaning and Definition of Find definitions for: au•re•o•lin Pronunciation: (ô-rē'u-lin, u-rē'-), [key] — n. a pigment used in painting, consisting of potassium cobaltinitrite and characterized by its brilliant yellow hue, transparency, and permanence. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. aureole Aureomycin Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language