The Collaborative International Dictionary of English v.0.48:

Judicial \Ju*di"cial\, a. [L. judicialis, fr. judicium judgment,
   fr. judex judge: cf. OF. judicial. See Judge.]
   [1913 Webster]
   1. Pertaining or appropriate to courts of justice, or to a
      judge; practiced or conformed to in the administration of
      justice; sanctioned or ordered by a court; as, judicial
      power; judicial proceedings; a judicial sale. "Judicial
      massacres." --Macaulay.
      [1913 Webster]

            Not a moral but a judicial law, and so was
            abrogated.                            --Milton.
      [1913 Webster]

   2. Fitted or apt for judging or deciding; as, a judicial
      mind; judicial temperament.
      [1913 Webster]

   3. Belonging to the judiciary, as distinguished from
      legislative, administrative, or executive. See
      Executive.
      [1913 Webster]

   4. Judicious. [Obs.] --B. Jonson.
      [1913 Webster]

WordNet (r) 3.0 (2006):

judicial
    adj 1: decreed by or proceeding from a court of justice; "a
           judicial decision"
    2: belonging or appropriate to the office of a judge; "judicial
       robes"
    3: relating to the administration of justice or the function of
       a judge; "judicial system" [syn: judicial, juridical,
       juridic]
    4: expressing careful judgment; "discriminative censure"; "a
       biography ...appreciative and yet judicial in purpose"-Tyler
       Dennett [syn: discriminative, judicial]