patent yellow

From The Collaborative International Dictionary of English v.0.48:

Yellow \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." --Shak.
      [1913 Webster]

   2. A yellow pigment.
      [1913 Webster]

   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.
      [1913 Webster]
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