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indigo

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indigo

 

  3  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Indigo  \In"di*go\,  n.;  pl  {Indigoes}.  [F.  indigo,  Sp  indigo, 
  indico,  L.  indicum  indigo,  fr  Indicus  Indian.  See  {Indian}.] 
  1.  A  kind  of  deep  blue,  one  of  the  seven  prismatic  colors. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Indigo  \In"di*go\,  a. 
  Having  the  color  of  pertaining  to  or  derived  from  indigo. 
 
  {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  {I.  tinctoria},  or  common  indigo  plant, 
  the  {I.  Anil},  a  larger  species,  and  the  {I.  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. 
 
  From  WordNet  r  1.6  [wn]: 
 
  indigo 
  n  1:  a  blue  dye  obtained  from  plants  or  made  synthetically  [syn: 
  {anil},  {indigotin}] 
  2:  deciduous  subshrub  of  southeastern  Asia  having  pinnate 
  leaves  and  clusters  of  red  or  purple  flowers;  a  source  of 
  indigo  dye  [syn:  {indigo  plant},  {Indigofera  tinctoria}] 
  3:  a  blue-violet  color




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