verdigris

• POS: Noun
• HYPHEN: ver=di=gris

CIDE DICTIONARY

verdigris, 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.].

•  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]
•  The green rust formed on copper.  [1913 Webster]

  " 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.

verdigris, v. t. 

 To cover, or coat, with verdigris.  Hawthorne.  [1913 Webster]

OXFORD DICTIONARY

verdigris, n.
1 a a green crystallized substance formed on copper by the action of acetic acid. b this used as a medicine or pigment.
2 green rust on copper or brass.

Etymology

ME f. OF verte-gres, vert de Grece green of Greece

ROGET THESAURUS

verdigris

Greenness

N greenness, green, blue and yellow, vert, emerald, verd antique, verdigris, malachite, beryl, aquamarine, absinthe, cr=eme de menthe, terre verte, verditer, verdine, copperas, greenness, verdure, viridity, viridescence, verditure, glaucoma, rokunaisho, green, verdant, glaucous, olive, olive green, green as grass, verdurous, emerald green, pea green, grass green, apple green, sea green, olive green, bottle green, coke bottle green, greenish, virent, virescent, green (learner), new, inexperienced, novice, (unskillful), green (ill, sick), green with envy, the green grass of Ireland, the wearing of the green.