Na·ples yel·low See under Yellow.
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Yel·low, n.
1. A bright golden color, reflecting more light than any other except white; the color of that part of the spectrum which is between the orange and green. “A long motley coat guarded with yellow.”
2. A yellow pigment.
Cadmium yellow, Chrome yellow, Indigo yellow, King's yellow, etc. See under Cadmium, Chrome, etc.
Naples yellow, a yellow amorphous pigment, used in oil, porcelain, and enamel painting, consisting of a basic lead metantimonate, obtained by fusing together tartar emetic lead nitrate, and common salt.
Patent yellow Old Chem., a yellow pigment consisting essentially of a lead oxychloride; -- called also Turner's yellow.