/ Dictionary / Index N Naples yellow: Meaning and Definition of Find definitions for: Na'ples yel'low Pronunciation: [key] a poisonous pigment used in painting and enameling, consisting chiefly of lead antimoniate and characterized by its fugitive yellow color, rapid drying rate, and strong film-forming properties. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Naples Napo Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language