An"il (#), n. [F. anil, Sp. anil, or Pg. anil; all fr. Ar. an-nil, for al-nil the indigo plant, fr. Skr. nila dark blue, nili indigo, indigo plant. Cf. Lilac.] Bot.

A West Indian plant (Indigofera anil), one of the original sources of indigo; also, the indigo dye.

 

© Webster 1913.

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