Source : Webster's Revised Unabridged Dictionary (1913)

Mitt \Mitt\, n. [Abbrev. fr. mitten.]
   A mitten; also, a covering for the wrist and hand and not for
   the fingers.

Source : WordNet®

mitt
     n 1: the (prehensile) extremity of the superior limb; "he had the
          hands of a surgeon"; "he extended his mitt" [syn: {hand},
           {manus}, {paw}]
     2: gloves worn by fielders in baseball [syn: {baseball glove},
        {glove}, {baseball mitt}]