Source : Webster's Revised Unabridged Dictionary (1913)

Bowleg \Bow"leg`\, n.
   A crooked leg. --Jer. Taylor.

Source : WordNet®

bowleg
     adj : have legs that curve outward at the knees [syn: {bandy}, {bandy-legged},
            {bowed}, {bowlegged}]

bowleg
     n : a leg bowed outward at the knee (or below the knee) [syn: {genu
         varum}, {tibia vara}]