The Collaborative International Dictionary of English v.0.48:

Disciple \Dis*ci"ple\, n. [OE. disciple, deciple, OF. disciple,
   fr. L. discipulus, fr. discere to learn (akin to docere to
   teach; see Docile) + prob. a root meaning to turn or drive,
   as in L. pellere to drive (see Pulse).]
   One who receives instruction from another; a scholar; a
   learner; especially, a follower who has learned to believe in
   the truth of the doctrine of his teacher; an adherent in
   doctrine; as, the disciples of Plato; the disciples of our
   Savior.
   [1913 Webster]

   The disciples, or The twelve disciples, the twelve
      selected companions of Jesus; -- also called the
      apostles.

   Disciples of Christ. See Christian, n., 3, and
      Campbellite.

   Syn: Learner; scholar; pupil; follower; adherent.
        [1913 Webster]