Source : Webster's Revised Unabridged Dictionary (1913)

Discipline \Dis"ci*pline\, v. t. [imp. & p. p. {Disciplined}; p.
   pr. & vb. n. {Disciplining}.] [Cf. LL. disciplinarian to
   flog, fr. L. disciplina discipline, and F. discipliner to
   discipline.]
   1. To educate; to develop by instruction and exercise; to
      train.

   2. To accustom to regular and systematic action; to bring
      under control so as to act systematically; to train to act
      together under orders; to teach subordination to; to form
      a habit of obedience in; to drill.

            Ill armed, and worse disciplined.     --Clarendon.

            His mind . . . imperfectly disciplined by nature.
                                                  --Macaulay.

   3. To improve by corrective and penal methods; to chastise;
      to correct.

            Has he disciplined Aufidius soundly?  --Shak.

   4. To inflict ecclesiastical censures and penalties upon.

   Syn: To train; form; teach; instruct; bring up; regulate;
        correct; chasten; chastise; punish.

Source : WordNet®

disciplined
     adj 1: obeying the rules
     2: trained mentally or physically by instruction or exercise;
        "the beautiful coordination of his disciplined muscles";
        "a disciplined mind"
     3: punished for misbehavior; "the chastised child sat humbly in
        the corner" [syn: {chastised}, {corrected}]