[1] : The Collaborative International Dictionary of English v.0.48

indigo \in"digo\, a.
   having the color of, pertaining to, or derived from, indigo.
   1913 webster

   indigo berry bot., the fruit of the west indian shrub
      randia aculeata, used as a blue dye.

   indigo bird zool., a small north american finch
      cyanospiza cyanea. the male is indigo blue in color.
      called also indigo bunting.

   indigo blue.
   a the essential coloring material of commercial indigo,
       from which it is obtained as a dark blue earthy powder,
       with a reddish luster, c16h10n2o2, which may be
       crystallized by sublimation. indigo blue is also made
       from artificial amido cinnamic acid, and from artificial
       isatine; and these methods are of great commercial
       importance. called also indigotin.
   b a dark, dull blue color like the indigo of commerce.

   indigo brown chem., a brown resinous substance found in
      crude indigo.

   indigo copper min., covellite.

   indigo green, a green obtained from indigo.

   indigo plant bot., a leguminous plant of several species
      genus indigofera, from which indigo is prepared. the
      different varieties are natives of asia, africa, and
      america. several species are cultivated, of which the most
      important are the indigofera tinctoria, or common
      indigo plant, the indigofera anil, a larger species,
      and the indigofera disperma.

   indigo purple, a purple obtained from indigo.

   indigo red, a dyestuff, isomeric with indigo blue, obtained
      from crude indigo as a dark brown amorphous powder.

   indigo snake zool., the gopher snake.

   indigo white, a white crystalline powder obtained by
      reduction from indigo blue, and by oxidation easily
      changed back to it; -- called also indigogen.

   indigo yellow, a substance obtained from indigo.
      1913 webster
see also:
indigo berry randia aculeata indigo bird cyanospiza cyanea indigo bunting indigo blue 
c16h10n2o2 indigotin indigo brown indigo copper indigo green 
indigo plant indigofera indigofera tinctoria common indigo plant indigofera anil 
indigofera disperma indigo purple indigo red indigo snake indigo white 
indigogen indigo yellow 

[2] : The Collaborative International Dictionary of English v.0.48

copper \cop"per\, n. oe. coper cf. d. koper, sw. koppar, dan.
   kobber, g. kupfer, ll. cuper, fr. l. cuprum for earlier
   cyprium, cyprium aes, i.e., cyprian brass, fr. gr. ? of
   cyprus gr. ?, anciently renowned for its copper mines. cf.
   cypreous.
   1. a common metal of a reddish color, both ductile and
      malleable, and very tenacious. it is one of the best
      conductors of heat and electricity. symbol cu. atomic
      weight 63.3. it is one of the most useful metals in
      itself, and also in its alloys, brass and bronze.
      1913 webster

   note: copper is the only metal which occurs native abundantly
         in large masses; it is found also in various ores, of
         which the most important are chalcopyrite, chalcocite,
         cuprite, and malachite. copper mixed with tin forms
         bell metal; with a smaller proportion, bronze; and with
         zinc, it forms brass, pinchbeck, and other alloys.
         1913 webster

   2. a coin made of copper; a penny, cent, or other minor coin
      of copper. colloq.
      1913 webster

            my friends filled my pockets with coppers.
                                                  --franklin.
      1913 webster

   3. a vessel, especially a large boiler, made of copper.
      1913 webster

   4. pl. specifically naut., the boilers in the galley for
      cooking; as, a ship's coppers.
      1913 webster

   note: copper is often used adjectively, commonly in the sense
         of made or consisting of copper, or resembling copper;
         as, a copper boiler, tube, etc.
         1913 webster

               all in a hot and copper sky.       --coleridge.
         1913 webster

   note: it is sometimes written in combination; as,
         copperplate, coppersmith, copper-colored.
         1913 webster

   copper finch. zool. see chaffinch.

   copper glance, or vitreous copper. min. see
      chalcocite.

   indigo copper. min. see covelline.
      1913 webster
see also:
cypreous copper finch chaffinch copper glance vitreous copper chalcocite 
indigo copper covelline 

[3] : The Collaborative International Dictionary of English v.0.48

covelline \covel"line\ k?-v?l"l?n, covellite \covel"lite\
   -l?t, n. after covelli, the discoverer. min.
   a native sulphide of copper, occuring in masses of a dark
   blue color; -- hence called indigo copper.
   1913 webster
see also:
indigo copper 

Indigo >> I Words
Indigo, definition of term: Indigo
indigo_pag1.html

Copper >> C Words
Copper, definition of term: Copper
copper_pag1.html

Indigo Plant >> I Words
Indigo Plant, definition of term: Indigo Plant
indigo+plant_pag1.html

Copper Sulphate >> C Words
Copper Sulphate, definition of term: Copper Sulphate
copper+sulphate_pag1.html

Copper Sulfate >> C Words
Copper Sulfate, definition of term: Copper Sulfate
copper+sulfate_pag1.html