Source : Webster's Revised Unabridged Dictionary (1913)

Bail bond \Bail" bond`\ (Law)
      (a) A bond or obligation given by a prisoner and his
          surety, to insure the prisoner's appearance in court,
          at the return of the writ.
      (b) Special bail in court to abide the judgment.
          --Bouvier.

Source : WordNet®

bail bond
     n : (criminal law) money that must be forfeited by the bondsman
         if an accused person fails to appear in court for trial;
         "the judge set bail at $10,000"; "a $10,000 bond was
         furnished by an alderman" [syn: {bail}, {bond}]