Verdigris

Ver·di·gris  (vûrd-grs)

A river, about 451 km (280 mi) long, of southeast Kansas and northeast Oklahoma flowing generally southward to the Arkansas River.

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ver·di·gris  (vûrd-grs, -grs, -gr)

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.

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[Middle English vertegrez, from Old French verte grez, alteration of vert-de-Grice : verd, green; see verdant + de, of (from Latin d; see de-) + Grice, Greece.]

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verdigris [ver-dig-reess]

Noun

a green or bluish coating which forms on copper, brass, or bronze that has been exposed to damp [Old French vert de Grice green of Greece]

Thesaurus

Noun	1.	verdigris - a blue or green powder used as a paint pigment cupric acetate pigment - dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.)
	2.	verdigris - 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 patina - a fine coating of oxide on the surface of a metal
Verb	1.	verdigris - color verdigris color, color in, colorise, colorize, colour in, colourise, colourize, colour - add color to; "The child colored the drawings"; "Fall colored the trees"; "colorize black and white film"