\Kid"ney\, n.; pl. {Kidneys}. [OE. kidnei, kidnere, from
Icel. koi?r belly, womb (akin to Goth. gipus, AS. cwip womb)
+ OE. nere kidney; akin to D. nier, G. niere, OHG. nioro,
Icel. n?ra, Dan. nyre, Sw. njure, and probably to Gr. (?) Cf.
{Kite} belly.]
1. (Anat.) A glandular organ which excretes urea and other
   waste products from the animal body; a urinary gland.
Note: In man and in other mammals there are two kidneys, one
      each side of vertebral column in the back part of the
      abdomen, each kidney being connected with the bladder
      by a long tube, the ureter, through which the urine is
      constantly excreted into the bladder to be periodically
      discharged.
2. Habit; disposition; sort; kind. --Shak.
         There are in later 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.
Note: This use of the word perhaps arose from the fact that
      the kidneys and the fat about them are an easy test of
      the condition of an animal as to fatness. ``Think of
      that, -- a man of my kidney; -- . . . as subject to
      heat as butter.'' --Shak.
3. A waiter. [Old Cant] --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} ({P. 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.