Definitions from Black's Law Dictionary: 2nd Edition and Ballentine's Law Dictionary as are available for each term in each dictionary.
  • Ballentine's Law Dictionary

    Having performed its office; legally defunct; of a process which has been returned; of an agent or officer without authority to proceed further.

  • Black's Law Dictionary: 2nd Edition

    Lat Having fulfilled the function, discharged the office or accomplished the purpose, and therefore of no further force or authority. Applied to an officer whose term has expired, and who has consequently no further official authority; and also to an instrument, power, agency, etc., which has fulfilled the purpose of its creation, and is therefore of no further virtue or effect.