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1 definition found
for Helvetia green
From The Collaborative International Dictionary of English v.0.48 :
Green \Green\ (gr[=e]n), n.
1. The color of growing plants; the color of the solar
spectrum intermediate between the yellow and the blue.
2. A grassy plain or plat; a piece of ground covered with
verdant herbage; as, the village green.
O'er the smooth enameled green. --Milton.
3. Fresh leaves or branches of trees or other plants;
wreaths; -- usually in the plural.
In that soft season when descending showers
Call forth the greens, and wake the rising flowers.
4. pl. Leaves and stems of young plants, as spinach, beets,
etc., which in their green state are boiled for food.
5. Any substance or pigment of a green color.
Alkali green (Chem.), an alkali salt of a sulphonic acid
derivative of a complex aniline dye, resembling emerald
green; -- called also Helvetia green.
Berlin green. (Chem.) See under Berlin.
Brilliant green (Chem.), a complex aniline dye, resembling
emerald green in composition.
Brunswick green, an oxychloride of copper.
Chrome green. See under Chrome.
Emerald green. (Chem.)
(a) A complex basic derivative of aniline produced as a
metallic, green crystalline substance, and used for
dyeing silk, wool, and mordanted vegetable fiber a
brilliant green; -- called also aldehyde green,
acid green, malachite green, Victoria green,
solid green, etc. It is usually found as a double
chloride, with zinc chloride, or as an oxalate.
(b) See Paris green (below).
Gaignet's green (Chem.) a green pigment employed by the
French artist, Adrian Gusgnet, and consisting essentially
of a basic hydrate of chromium.
Methyl green (Chem.), an artificial rosaniline dyestuff,
obtained as a green substance having a brilliant yellow
luster; -- called also light-green.
Mineral green. See under Mineral.
Mountain green. See Green earth, under Green, a.
Paris green (Chem.), a poisonous green powder, consisting
of a mixture of several double salts of the acetate and
arsenite of copper. It has found very extensive use as a
pigment for wall paper, artificial flowers, etc., but
particularly as an exterminator of insects, as the potato
bug; -- called also Schweinfurth green, imperial
green, Vienna green, emerald qreen, and mitis
Scheele's green (Chem.), a green pigment, consisting
essentially of a hydrous arsenite of copper; -- called
also Swedish green. It may enter into various pigments
called parrot green, pickel green, Brunswick green,
nereid green, or emerald green.
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