Distal \Dis"tal\, a. [From Distant.]

(Physiol.)
   (a) Remote from the point of attachment or origin; as, the distal end of a bone or muscle; -- opposed to proximal.
   (b) Pertaining to that which is distal; as, the distal tuberosities of a bone.

Source: Webster's Revised Unabridged Dictionary (1913)