Kidney

n. pl. Kidneys (kĭd"nĭz).
  1. (Anat.) A glandular organ which excretes urea and other waste products from the animal body; a urinary gland.
  2. Habit; disposition; sort; kind; as, a man of a different kidney.
  3. A waiter.
  4. Floating kidney .
    See Wandering kidney, under Wandering.
    Kidney bean (Bot.),
    a sort of bean; -- so named from its shape. It is of the genus Phaseolus (Phaseolus vulgaris). See under Bean.
    Kidney ore (Min.),
    a variety of hematite or iron sesquioxide, occurring in compact kidney-shaped masses.
    Kidney stone . (Min.)
    See Nephrite, and Jade.
    Kidney vetch (Bot.),
    a leguminous herb of Europe and Asia (Anthyllis vulneraria), with cloverlike heads of red or yellow flowers, once used as a remedy for renal disorders, and also to stop the flow of blood from wounds; lady's-fingers.