The Collaborative International Dictionary of English v.0.48:

Dexterity \Dex*ter"i*ty\, n. [L. dexteritas, fr. dexter: cf. F.
   dext['e]rit['e]. See Dexter.]
   1. Right-handedness.
      [1913 Webster]

   2. Readiness and grace in physical activity; skill and ease
      in using the hands; expertness in manual acts; as,
      dexterity with the chisel.
      [1913 Webster]

            In youth quick bearing and dexterity. --Shak.
      [1913 Webster]

   3. Readiness in the use or control of the mental powers;
      quickness and skill in managing any complicated or
      difficult affair; adroitness.
      [1913 Webster]

            His wisdom . . . was turned . . . into a dexterity
            to deliver himself.                   --Bacon.
      [1913 Webster]

            He had conducted his own defense with singular
            boldness and dexterity.               --Hallam.

   Syn: Adroitness; activity; nimbleness; expertness; skill;
        cleverness; art; ability; address; tact; facility;
        aptness; aptitude; faculty. See Skill.
        [1913 Webster]

WordNet (r) 3.0 (2006):

dexterity
    n 1: adroitness in using the hands [syn: dexterity, manual
         dexterity, sleight]