Source : Webster's Revised Unabridged Dictionary (1913)

Bedlam \Bed"lam\, n. [See {Bethlehem}.]
   1. A place appropriated to the confinement and care of the
      insane; a madhouse. --Abp. Tillotson.

   2. An insane person; a lunatic; a madman. [Obs.]

            Let's get the bedlam to lead him.     --Shak.

   3. Any place where uproar and confusion prevail.

Bedlam \Bed"lam\, a.
   Belonging to, or fit for, a madhouse. ``The bedlam, brainsick
   duchess.'' --Shak.

Source : WordNet®

bedlam
     n 1: a state of extreme confusion and disorder [syn: {chaos}, {pandemonium},
           {topsy-turvydom}, {topsy-turvyness}]
     2: pejorative terms for an insane asylum [syn: {booby hatch}, {crazy
        house}, {cuckoo's nest}, {funny farm}, {funny house}, {loony
        bin}, {madhouse}, {nut house}, {nuthouse}, {sanatorium}, {snake
        pit}]