A*bor"tion (&adot;*bôr"shŭn), n. [L. abortio, fr. aboriri. See Abort.] 1. The act of giving premature birth; particularly, the expulsion of the human fetus prematurely, or before it is capable of sustaining life; miscarriage.

&fist; It is sometimes used for the offense of procuring a premature delivery, but strictly the early delivery is the abortion, "causing or procuring abortion" is the full name of the offense. Abbott.

2. The immature product of an untimely birth.

3. (Biol.) Arrest of development of any organ, so that it remains an imperfect formation or is absorbed.

4. Any fruit or produce that does not come to maturity, or anything which in its progress, before it is matured or perfect; a complete failure; as, his attempt proved an abortion.

• The act of giving premature birth; particularly, the expulsion of the human fetus prematurely, or before it is capable of sustaining life; miscarriage.
  
• The act of inducing abortion.
  
• The immature product of an untimely birth.
  
• (biology) Arrest of development of any organ, so that it remains an imperfect formation or is absorbed.
  
• Any fruit or produce that does not come to maturity, or anything which in its progress, before it is matured or perfect
  
• A complete failure.
       His attempt proved an abortion.
  
• The act of aborting a project, a mission, etc, before it is completed.