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

    Out of the ordinary; exceeding the usual, average or normal measure or degree.
    —Extraordinary average. A contribution by all the parlies concerned in a mercantile voyage, either as to the vessel or cargo, toward a loss sustained by some of the parties in interest for the banefit of all. Wilson v. Cross, 33 Cal. 69,
    —Extraordinary pare is synonymous with greatest care, utmost care, highest degree of care. Rnilroad Co., v. Baddeley, 54 111. 24, 5 Am. Rep. 71; Railway Co. v. Causler, 97 Ala. 235, 12 South. 489. See Care; Diligence; Negligence.
    —Extraordinary remedies. The write of mandamus, quo toarranto, habeas corpus, and some others are sometimes called "extraordinary remedies," in contradistinction to the ordinary remedy by action.