See Also: indigo blue(dictionary)
indigo blue(medicine)
indigo(dictionary)
Indigo(medicine)
indigo(dictionary)
indigo(encyclopedia)
IndiGo Airlines(tourism)
indigo snake(encyclopedia)
indigo plant(encyclopedia)
indigo carmine(medicine)

indigo blue (iou)



indigo blue noun & adjectival phr. E18.
[from INDIGO + BLUE noun, adjective.]
A. noun phr.
The violet-blue colour of indigo. E18.
= INDIGOTIN. M19.
b. adjectival phr. Of the blue colour of indigo. M19.