verdigris
n . 铜绿
铜绿
verdigris n 1 :
a blue or green powder used as a paint pigment [
synonym :
{
verdigris }, {
cupric acetate }]
2 :
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 v 1 :
color verdigris Verdigris \
Ver "
di *
gris \,
n . [
F .
vert -
de -
gris ,
apparently from verd ,
vert ,
green de of gris gray ,
but really a corruption of LL .
viride aeris (
equivalent to L .
aerugo ),
from L .
viridis green aes ,
aeris ,
brass .
See {
Verdant },
and 2d {
Ore }.]
1 . (
Chem .)
A green poisonous substance used as a pigment and drug ,
obtained by the action of acetic acid on copper ,
and consisting essentially of a complex mixture of several basic copper acetates .
[
1913 Webster ]
2 .
The green rust formed on copper . [
Colloq .]
[
1913 Webster ]
Note :
This rust is a carbonate of copper ,
and should not be confounded with true verdigris . --
U .
S .
Disp .
[
1913 Webster ]
{
Blue verdigris } (
Chem .),
a verdigris having a blue color ,
used as a pigment ,
etc .
{
Distilled verdigris } (
Old Chem .),
an acid copper acetate ; --
so called because the acetic acid used in making it was obtained from distilled vinegar .
{
Verdigris green },
clear bluish green ,
the color of verdigris .
[
1913 Webster ]
Verdigris \
Ver "
di *
gris \,
v .
t .
To cover ,
or coat ,
with verdigris . [
R .] "
An old verdigrised brass bugle ." --
Hawthorne .
[
1913 Webster ]
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