The Collaborative International Dictionary of English v.0.48:

Violet \Vi"o*let\, a. [Cf. F. violet. See Violet, n.]
   Dark blue, inclining to red; bluish purple; having a color
   produced by red and blue combined.
   [1913 Webster]

   Violet shell (Zool.), any species of Ianthina; -- called
      also violet snail. See Ianthina.

   Violet wood, a name given to several kinds of hard purplish
      or reddish woods, as king wood, myall wood, and the wood
      of the Andira violacea, a tree of Guiana.
      [1913 Webster]