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]

Moby Thesaurus II by Grady Ward, 1.0:

113 Moby Thesaurus words for "dexterity":
   ability, acuity, acuteness, address, adeptness, adroitness,
   airmanship, aptitude, aptness, art, artfulness, artisanship,
   artistry, astuteness, braininess, bravura, brightness, brilliance,
   canniness, capability, capacity, clear thinking, cleverness,
   command, competence, control, coordination, craft, craftsmanship,
   cunning, deftness, dexterousness, dextrality, dextrocularity,
   dextroduction, dextrogyration, dextrorotation, dextrousness,
   dextroversion, diplomacy, efficiency, effortlessness, esprit,
   expertise, facility, finesse, flair, genius, giftedness, gifts,
   grace, grip, guile, handiness, horsemanship, ingeniousness,
   ingenuity, keen-wittedness, keenness, knack, know-how,
   marksmanship, mastership, mastery, mental alertness,
   mercurial mind, native cleverness, nimble mind, nimble-wittedness,
   nimbleness, nous, practical ability, proficiency, prowess,
   quick parts, quick thinking, quick wit, quick-wittedness,
   quickness, readiness, ready wit, resource, resourcefulness,
   right-handedness, rightness, savoir-faire, savvy, seamanship,
   sharp-wittedness, sharpness, shrewdness, skill, skillfulness,
   sleight, sleight of hand, smartness, smarts, smoothness,
   sprightly wit, style, tact, tactfulness, talent,
   technical brilliance, technical mastery, technical skill,
   technique, timing, touch, virtuosity, wit, wizardry, workmanship