/
ˈɪndɪgəʊ/
n.
(pl. indigos or indigoes)
- a tropical plant formerly widely cultivated as a source of dark blue dye.
[Indigofera tinctoria and related species.]
- the dark blue dye obtained from the indigo plant.
▸a colour between blue and violet in the spectrum.
Etymology
C16: from Port. índigo, via L. from Gk indikon, from indikos ‘Indian (dye)’.
