kidneyn.[OE. kidnei, kidnere, from Icel. koir belly, womb (akin to Goth. gipus, AS. cwi womb) + OE. nere kidney; akin to D. nier, G. niere, OHG. nioro, Icel. nra, Dan. nyre, Sw. njure, and probably to Gr. nefro`s Cf. Kite belly.]()()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.(Shak.)There are in later times other decrees, made by popes of another kidney. (Barrow.)Millions in the world of this man's kidney. (L'Estrange.)Your poets, spendthrifts, and other fools of that kidney, pretend, forsooth, to crack their jokes on prudence. (Burns.)(Shak.)3. A waiter.(Tatler.)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.()a. Having the form or shape of a kidney; reniform; as, a kidney-shaped leaf; a kidney-shaped swimming pool.(Gray.)