Source : Webster's Revised Unabridged Dictionary (1913)

Bandeau \Ban*deau"\, n.; pl. {-deaux}. [F.]
   A narrow band or fillet, as for the hair, part of a
   headdress, etc.

Bandeau \Ban"deau\ (b[a^]n"d[=o]), n.; pl. {Bandeaux}
   (b[a^]n"d[=o]z). [F.]
   A narrow band or fillet; a part of a head-dress.

         Around the edge of this cap was a stiff bandeau of
         leather.                                 --Sir W.
                                                  Scott.

Source : WordNet®

bandeau
     n : an undergarment worn by women to support their breasts [syn:
          {brassiere}, {bra}]
     [also: {bandeaux} (pl)]