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2 definitions found
 for Indigo yellow
From The Collaborative International Dictionary of English v.0.48 :

  Indigo \In"di*go\, 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]

From The Collaborative International Dictionary of English v.0.48 :

  Yellow \Yel"low\, n.
     1. A bright golden color, reflecting more light than any
        other except white; the color of that part of the spectrum
        which is between the orange and green. "A long motley coat
        guarded with yellow." --Shak.
        [1913 Webster]
     2. A yellow pigment.
        [1913 Webster]
     Cadmium yellow, Chrome yellow, Indigo yellow, King's
     yellow, etc. See under Cadmium, Chrome, etc.
     Naples yellow, a yellow amorphous pigment, used in oil,
        porcelain, and enamel painting, consisting of a basic lead
        metantimonate, obtained by fusing together tartar emetic
        lead nitrate, and common salt.
     Patent yellow (Old Chem.), a yellow pigment consisting
        essentially of a lead oxychloride; -- called also
        Turner's yellow.
        [1913 Webster]

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