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} (Zo["o]l.), 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} (Zo["o]l.), 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]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Indigotin — In di*go*tin, n. (Chem.) See {Indigo blue}, under {Indigo}. [1913 Webster] …   The Collaborative International Dictionary of English

  • Indigotin — Indigotin, s.u. Indig II. D) …   Pierer's Universal-Lexikon

  • Indigotīn — Indigotīn, soviel wie Indigblau; im Handel auch soviel wie Indigkarmin …   Meyers Großes Konversations-Lexikon

  • indigotin — [in dig′ə tin, in΄di gō′tin] n. [ INDIGO + t + IN1] a dark blue powder, C16H10N2O2, with a coppery luster, the coloring matter and chief ingredient in indigo (the dye) …   English World dictionary

  • Indigotin — Strukturformel Allgemeines Name Indigokarmin Andere Namen Indigotin I Indigotin 5,5′ disulfonsäure Dinatriumsalz …   Deutsch Wikipedia

  • indigotin — indigas statusas T sritis chemija apibrėžtis Dažiklis. formulė [C₆H₄:(CO,NH):C=]₂ atitikmenys: angl. indigo; indigotin rus. индиго; индиготин ryšiai: sinonimas – indigotinas sinonimas – (E) bis(3 okso 2 indolinilidenas) …   Chemijos terminų aiškinamasis žodynas

  • indigotin — noun Etymology: French indigotine, irregular from indigo indigo Date: 1838 indigo 1b …   New Collegiate Dictionary

  • indigotin — /in dig euh tin, in di goht n/, n. See indigo blue (def. 2). [1830 40; INDIGOT(IC) + IN2] * * * …   Universalium

  • indigotin — noun A dark blue compound that is the principal dye in indigo …   Wiktionary

  • indigotin — SYN: indigo. * * * in·di·go·tin in dig ət ən, .in di gōt ən n INDIGO (1b) * * * in·dig·o·tin (in″dĭ goґtin) a neutral, tasteless, dark blue powder, the principal ingredient of commercial indigo; called also indigo blue …   Medical dictionary

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