• (obsolete) A miscarriage; an untimely birth; an abortion. [Attested from around (1350 to 1470) until the mid 17th century.]
  • (computing) The function used to abort a process.
  • (military, aeronautics) An early termination of a mission, action, or procedure in relation to missiles or spacecraft; the craft making such a mission.

    "We've had aborts on three of our last seven launches."

  • (now rare) The product of a miscarriage; an aborted offspring; an abortion. [First attested in the early 17th century.]
  • (computing) An event involving the abort of a process.

    "We've had three aborts over the last two days."


  • (intransitive, military) To fail or abandon a mission for any reason other than enemy action, at any point after the beginning of the mission and prior to its completion. [First attested in the mid 20th century.]
  • (transitive, computing) To terminate a process prior to completion.
  • (transitive) To end prematurely; to stop in the preliminary stages; to turn back. [First attested in the late 16th century.]
  • (transitive, biology) To cause an organism to develop minimally; to cause rudimentary development to happen; to prevent maturation. [First attested in the mid 19th century.]
  • (transitive) To cause a premature termination of a foetus; to bring forth offspring prematurely; to end a pregnancy before term.
  • (intransitive) To miscarry; to bring forth offspring prematurely. [First attested in the mid 16th century.]
  • (intransitive, biology) To become checked in normal development, so as either to remain rudimentary or shrink away wholly; to cease organic growth before maturation; to become sterile. [First attested in the mid 19th century.]
  • (transitive, aeronautics) To terminate a mission involving a missile or rocket; to destroy a missile or rocket prematurely. [First attested in the mid 20th century.]
  • (intransitive) To stop or fail at something in the preliminary stages. [First attested in the late 16th century.]

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