n.
Pronunciation: ' v ə r-d ə - ˌ gr ē s, - ˌ gris, -gr ə s also - ˌ gr ē
Function: noun
Etymology: Middle English vertegrese, from Anglo-French verdegrece, vert de Grece, literally, green of Greece
Date: 14th century
1 a : a green or greenish-blue poisonous pigment resulting from the action of acetic acid on copper and consisting of one or more basic copper acetates b : normal copper acetate Cu(C 2 H 3 O 2 ) 2 ·H 2 O
2 : a green or bluish deposit especially of copper carbonates formed on copper, brass, or bronze surfaces