verdigris

[vur-di-grees, -gris]
noun
a green or bluish patina formed on copper, brass, or bronze surfaces exposed to the atmosphere for long periods of time, consisting principally of basic copper sulfate.
Also called aerugo.


Origin:
1250–1300; < Middle French vert de gris; replacing Middle English vertegrez < Anglo-French vert de Grece, Old French vere grez green of Greece

verdigrisy, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To verdigris
Collins
World English Dictionary
verdigris (ˈvɜːdɪɡrɪs)
 
n
1.  a green or bluish patina formed on copper, brass, or bronze and consisting of a basic salt of copper containing both copper oxide and a copper salt
2.  a green or blue crystalline substance obtained by the action of acetic acid on copper and used as a fungicide and pigment; basic copper acetate
 
[C14: from Old French vert de Grice green of Greece]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History

verdigris
1300, from O.Fr. verte grez (13c.), verte de Grece (c.1170), lit. "green of Greece," from obs. Fr. verd, from L. viridis (see verdure). The reason for it being called that is not known.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
Example sentences
On the inside, two veins the color of verdigris were visible.
The green color of the monument is the result of verdigris or green rust of copper.
The verdigris had partially darkened and discolored.
Related Words
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature
FAVORITES
RECENT

;