Source : Webster's Revised Unabridged Dictionary (1913)

Azure \Az"ure\, v. t.
   To color blue.

Azure \Az"ure\ (?; 277), a. [F. & OSp. azur, Sp. azul, through
   Ar. from Per. l[=a]jaward, or l[=a]juward, lapis lazuli, a
   blue color, l[=a]jaward[=i], l[=a]juward[=i], azure,
   cerulean, the initial l having been dropped, perhaps by the
   influence of the Ar. azr-aq azure, blue. Cf. G. lasur,
   lasurstein, azure color, azure stone, and NL. lapis lazuli.]
   Sky-blue; resembling the clear blue color of the unclouded
   sky; cerulean; also, cloudless.

   {Azure stone} (Min.), the lapis lazuli; also, the lazulite.

Azure \Az"ure\, n.
   1. The lapis lazuli. [Obs.]

   2. The clear blue color of the sky; also, a pigment or dye of
      this color. ``In robes of azure.'' --Wordsworth.

   3. The blue vault above; the unclouded sky.

            Not like those steps On heaven's azure. --Milton.

   4. (Her.) A blue color, represented in engraving by
      horizontal parallel lines.

Source : WordNet®

azure
     adj : of a deep somewhat purplish blue color similar to that of a
           clear October sky; "October's bright blue weather"
           [syn: {cerulean}, {sky-blue}, {bright blue}]

azure
     n : a light shade of blue [syn: {cerulean}, {sapphire}, {lazuline},
          {sky-blue}]
     v : color azure; "Morning azured the village"