Malachite green

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.
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   2. A grassy plain or plat; a piece of ground covered with
      verdant herbage; as, the village green.
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            O'er the smooth enameled green.       --Milton.
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   3. Fresh leaves or branches of trees or other plants;
      wreaths; -- usually in the plural.
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            In that soft season when descending showers
            Call forth the greens, and wake the rising flowers.
                                                  --Pope.
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   4. pl. Leaves and stems of young plants, as spinach, beets,
      etc., which in their green state are boiled for food.
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   5. Any substance or pigment of a green color.
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   {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
      green}.

   {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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Malachite \Mal"a*chite\, n. [Fr. Gr. mala`chh a mallow, from its
   resembling the green color of the leaf of mallows: cf. F.
   malachite. Cf. {Mallow}.] (Min.)
   Native hydrous carbonate of copper, usually occurring in
   green mammillary masses with concentric fibrous structure.
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   Note: Green malachite, or malachite proper, admits of a high
         polish, and is sometimes used for ornamental work. Blue
         malachite, or azurite, is a related species of a deep
         blue color.
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   {Malachite green}. See {Emerald green}, under {Green}, n.
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