The Collaborative International Dictionary of English v.0.48:

Uniform \U"ni*form\, n. [F. uniforme. See Uniform, a.]
   A dress of a particular style or fashion worn by persons in
   the same service or order by means of which they have a
   distinctive appearance; as, the uniform of the artillery, of
   the police, of the Freemasons, etc.
   [1913 Webster]

         There are many things which, a soldier will do in his
         plain clothes which he scorns to do in his uniform.
                                                  --F. W.
                                                  Robertson.
   [1913 Webster]

   In full uniform (Mil.), wearing the whole of the prescribed
      uniform, with ornaments, badges of rank, sash, side arms,
      etc.

   Uniform sword, an officer's sword of the regulation pattern
      prescribed for the army or navy.
      [1913 Webster]