Source : Webster's Revised Unabridged Dictionary (1913)

Tendon \Ten"don\, n. [F., fr. L. tendere to stretch, extend. See
   {Tend} to move.] (Anat.)
   A tough insensible cord, bundle, or band of fibrous
   connective tissue uniting a muscle with some other part; a
   sinew.

   {Tendon reflex} (Physiol.), a kind of reflex act in which a
      muscle is made to contract by a blow upon its tendon. Its
      absence is generally a sign of disease. See {Knee jerk},
      under {Knee}.

Source : WordNet®

tendon
     n : a cord or band of inelastic tissue connecting a muscle with
         its bony attachment [syn: {sinew}]