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

    That which cannot be spared, omitted or dispensed with.
    —Indispensable evidence. See Evidence.
    — Indispensable parties. In a suit in equity, those who not only have an interest in the subject-matter of the controversy, but an interest of such a nature that a final decree cannot be made without either affecting their interests or leaving the controversy in such a condition that its final determination may be wholly inconsistent with equity and good conscience. Shields v. Barrow, 17 How. 139, 15 L. Ed. 158 ; Ken-dig v. Dean, 07 U. S. 425, 24 L. Ed. 1061; Mallow v. Hinde, 12 Wheat. 193, 6 In Ed. 599.