The Collaborative International Dictionary of English v.0.48:

Axial \Ax"i*al\, a.
   1. Of or pertaining to an axis; of the nature of, or
      resembling, an axis; around an axis.
      [1913 Webster]

            To take on an axial, and not an equatorial,
            direction.                            --Nichol.
      [1913 Webster]

   2. (Anat.) Belonging to the axis of the body; as, the axial
      skeleton; or to the axis of any appendage or organ; as,
      the axial bones.
      [1913 Webster]

   Axial line (Magnetism), the line taken by the magnetic
      force in passing from one pole of a horseshoe magnet to
      the other. --Faraday.
      [1913 Webster]

WordNet (r) 3.0 (2006):

axial
    adj 1: of or relating to or resembling an axis of rotation
    2: relating to or attached to the axis; "axial angle" [syn:
       axile, axial]
    3: situated on or along or in the direction of an axis