Flour \Flour\ (flour), n. [F. fleur de farine the flower
         (i.e.,
   the best) of meal, cf. Sp. flor de la harina
         superfine flour,
   Icel. fl["u]r flower, flour. See Flower.]
   The finely
         ground meal of wheat, or of any other grain;
   especially,
         the finer part of meal separated by bolting;
   hence, the
         fine and soft powder of any substance; as, flour
   of
         emery; flour of mustard.
   [1913 Webster]

   {Flour
         bolt}, in milling, a gauze-covered, revolving,
     
         cylindrical frame or reel, for sifting the flour from the
 
             refuse contained in the meal yielded by the stones.

 
          Flour box a tin box
         for scattering flour; a dredging
         box.
      

   Flour dredge or Flour dredger, a
         flour box.

   Flour
         dresser, a mashine for sorting and
         distributing flour
      according to grades of
         fineness.

   Flour
         mill, a mill for grinding and
         sifting flour.
      [1913 Webster]