[1] : The Collaborative International Dictionary of English v.0.48

verdigris \ver"digris\, v. t.
   to cover, or coat, with verdigris. r. "an old verdigrised
   brass bugle." --hawthorne.
   1913 webster

[2] : The Collaborative International Dictionary of English v.0.48

verdigris \ver"digris\, n. f. vert-de-gris, apparently from
   verd, vert, green + de of + gris gray, but really a
   corruption of ll. viride aeris equivalent to l. aerugo,
   from l. viridis green + aes, aeris, brass. see verdant, and
   2d ore.
   1. chem. a green poisonous substance used as a pigment and
      drug, obtained by the action of acetic acid on copper, and
      consisting essentially of a complex mixture of several
      basic copper acetates.
      1913 webster

   2. the green rust formed on copper. colloq.
      1913 webster

   note: this rust is a carbonate of copper, and should not be
         confounded with true verdigris. --u. s. disp.
         1913 webster

   blue verdigris chem., a verdigris having a blue color,
      used as a pigment, etc.

   distilled verdigris old chem., an acid copper acetate; --
      so called because the acetic acid used in making it was
      obtained from distilled vinegar.

   verdigris green, clear bluish green, the color of
      verdigris.
      1913 webster
see also:
verdant ore blue verdigris distilled verdigris verdigris green 

[3] : WordNet (r) 2.0

verdigris
     n 1: a blue or green powder used as a paint pigment syn: cupric
          acetate
     2: a green patina that forms on copper or brass or bronze that
        has been exposed to the air or water for long periods of
        time
     v : color verdigris
see also:
cupric acetate 

Verdigris >> V Words
Verdigris, definition of term: Verdigris
verdigris_pag1.html