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]

Moby Thesaurus II by Grady Ward, 1.0:

65 Moby Thesaurus words for "judicial":
   actionable, analytical, applicable, authorized, careful,
   circumspect, competent, considerate, constitutional, critical,
   curial, discerning, discreet, discriminating, discriminative,
   discriminatory, distinguishing, enlightened, fair, forensic,
   impartial, judgmatic, judgmental, judicative, judicatorial,
   judicatory, judiciary, judicious, juridic, juridical,
   jurisdictional, jurisdictive, juristic, just, justiciable, keen,
   kosher, lawful, lawmaking, legal, legislative, legit, legitimate,
   licit, magisterial, official, perceptive, percipient,
   perspicacious, politic, provident, prudent, prudential, reflecting,
   reflective, rightful, sanctioned, sharp, statutory, thoughtful,
   tribunal, valid, well-advised, well-judged, within the law



Bouvier's Law Dictionary, Revised 6th Ed (1856):

JUDICIAL. Belonging, or emanating from a judge, as such.
     2. Judicial sales, are such as are ordered by virtue of the process of
courts. 1 Supp. to Ves. jr., 129, 160; 2 Ves. jr., 50.
     3. A judicial writ is one issued in the progress of the cause, in
contradistinction to an original writ. 3 Bl. Com. 282.
     4. Judicial decisions, are the opinions or determinations of the judges
in causes before them. Hale, H. C. L. 68; Willes' R. 666; 3 Barn. & Ald. 122
4 Barn. & Adolph. 207 1 H. B1. 63; 5 M. & S. 185.
     5. Judicial power, the authority vested in the judges. The constitution
of the United States declares, that "the judicial power of the United States
shall be vested in one supreme court, and in such inferior courts as the
congress may, from time to time, ordain and establish." Art. 3, s. 1. 6. By
the constitutions of the several states, the judicial power is vested in
such courts as are enumerated in each respectively. See the names Of, the
several states. There is nothing in the constitution of the United States to
forbid or prevent the legislature of a state from exercising judicial
functions; 2 Pet. R. 413; and judicial acts have occasionally been performed
by the legislatures. 2 Root, R. 350; 3 Greenl. R. 334; 3 Dall. R. 386; 2
Pet. R. 660; 16 Mass. R. 328; Walk. R. 258; 1 New H. Rep. 199; 10 Yerg. R.
59; 4 Greenl. R. 140; 2 Chip., R. 77; 1 Aik. R. 314. But a state legislature
cannot annul the judgments, nor determine the jurisdiction of the courts of
the United States; 5 Cranch, It. 116; 2 Dall. R. 410; nor authoritatively
declare what the law is, or has been, but what it shall be. 2 Cranch, R.
272; 4 Pick. R. 23. Vide Ayl. Parerg. 27; 3 M. R. 248; 4 M. R. 451; 9 M. R.
325; 6 M. R. 668; 12 M. R. 349; 3 N. S. 551; 5 N. S. 519; 1 L. R. 438 7 M.
R. 325; 9 M. R. 204; 10 M. R. 1.