Source : Webster's Revised Unabridged Dictionary (1913)

Abort \A*bort"\, n. [L. abortus, fr. aboriri.]
   1. An untimely birth. [Obs.] --Sir H. Wotton.

   2. An aborted offspring. [Obs.] --Holland.

Abort \A*bort"\ ([.a]*b[^o]rt"), v. i. [L. abortare, fr.
   abortus, p. p. of aboriri; ab + oriri to rise, to be born.
   See {Orient}.]
   1. To miscarry; to bring forth young prematurely.

   2. (Biol.) To become checked in normal development, so as
      either to remain rudimentary or shrink away wholly; to
      become sterile.

Source : WordNet®

abort
     v 1: terminate before completion; "abort the mission"; "abort the
          process running on my computer"
     2: terminate a pregnancy by undergoing an abortion

Source : Free On-Line Dictionary of Computing

abort
     
         To terminate a program or {process} abnormally
        and usually suddenly, with or without {diagnostic}
        information.  "My program aborted", "I aborted the
        transmission".  The noun form in computing is "abort", not
        "abortion", e.g. "We've had three aborts over the last two
        days".
     
        If a {Unix} {kernel} aborts it is known as a {panic}.
     
        (1997-01-07)