Source : Webster's Revised Unabridged Dictionary (1913)

Washbowl \Wash"bowl`\, n.
   A basin, or bowl, to hold water for washing one's hands,
   face, etc.

Source : WordNet®

washbowl
     n 1: a bathroom or lavatory sink that is permanently installed
          and connected to a water supply and drainpipe; where you
          wash your hands and face; "he ran some water in the
          basin and splashed it on his face" [syn: {washbasin}, {basin},
           {washstand}, {lavatory}]
     2: a basin for washing the hands (`wash-hand basin' is a
        British expression) [syn: {washbasin}, {handbasin}, {lavabo},
         {wash-hand basin}]