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verdigris

 - 5 dictionary results

ver⋅di⋅gris

  [vur-di-grees, -gris]
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–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; < MF vert de gris; r. ME vertegrez < AF vert de Grece, OF vere grez green of Greece

Related forms:
ver⋅di⋅gris⋅y, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To verdigris
ver·di·gris   (vûr'dĭ-grēs', -grĭs', -grē')   
n.  

  1. A blue or green powder consisting of basic cupric acetate used as a paint pigment and fungicide.

  2. A green patina or crust of copper sulfate or copper chloride formed on copper, brass, and bronze exposed to air or seawater for long periods of time.


[Middle English vertegrez, from Old French verte grez, alteration of vert-de-Grice : verd, green; see verdant + de, of (from Latin dē; see de-) + Grice, Greece.]
Ver·di·gris   (vûr'dĭ-grĭs)   
A river, about 451 km (280 mi) long, of southeast Kansas and northeast Oklahoma flowing generally southward to the Arkansas River.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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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, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: ver·di·gris
Pronunciation: 'v&rd-&-"grEs, -"gris, -gr&s also -"grE
Function: noun
: a green or greenish bluepoisonous pigment resulting from the action of acetic acid on copper, consisting of one or more basic copper acetates, and formerly used in medicine
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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