verdigris

[ vur-di-grees, -gris ]
/ ˈvɜr dɪˌgris, -grɪs /

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 of verdigris

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

OTHER WORDS FROM verdigris

ver·di·gris·y, adjective

Example sentences from the Web for verdigris

British Dictionary definitions for verdigris

verdigris
/ (ˈvɜːdɪɡrɪs) /

noun

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
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

Word Origin for verdigris

C14: from Old French vert de Grice green of Greece