Source : Webster's Revised Unabridged Dictionary (1913)

Sequel \Se"quel\ (s[=e]"kw[e^]l), n. [L. sequela, fr. sequit to
   follow: cf. F. s['e]quelle a following. See {Sue} to follow.]
   1. That which follows; a succeeding part; continuation; as,
      the sequel of a man's advantures or history.

            O, let me say no more! Gather the sequel by that
            went before.                          --Shak.

   2. Consequence; event; effect; result; as, let the sun cease,
      fail, or swerve, and the sequel would be ruin.

   3. Conclusion; inference. [R.] --Whitgift.

Source : WordNet®

sequel
     n 1: something that follows something else [syn: {subsequence}]
     2: a part added to a book or play that continues and extends it
        [syn: {continuation}]

Source : Free On-Line Dictionary of Computing

Sequel
     
        1. Precursor to SQL.
     
        ["System R: Relational Approach to Database Management", IBM
        Res Lab, San Jose, reprinted in Readings in Database Systems].
     
        2. U Leeds.  Theorem prover specification language.  Pattern
        matching notation similar to Prolog.  Compiled into Lisp.
     
        [Proc ICJAI 13].
     
        {(ftp://agora.leeds.ac.uk/scs/logic/)}.