The Collaborative International Dictionary of English v.0.48:

Kidney \Kid"ney\ (k[i^]d"n[y^]), n.; pl. Kidneys
   (k[i^]d"n[i^]z). [OE. kidnei, kidnere, from Icel. koi[eth]r
   belly, womb (akin to Goth. gipus, AS. cwi[thorn] womb) + OE.
   nere kidney; akin to D. nier, G. niere, OHG. nioro, Icel.
   n[=y]ra, Dan. nyre, Sw. njure, and probably to Gr. nefro`s
   Cf. Kite belly.]
   [1913 Webster]
   1. (Anat.) A glandular organ which excretes urea and other
      waste products from the animal body; a urinary gland.
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   Note: In man and in other mammals there are two kidneys, one
         on 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.
         [1913 Webster]

   2. Habit; disposition; sort; kind; as, a man of a different
      kidney. --Shak.
      [1913 Webster +PJC]

            There are in later times other decrees, made by
            popes of another kidney.              --Barrow.
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            Millions in the world of this man's kidney.
                                                  --L'Estrange.
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            Your poets, spendthrifts, and other fools of that
            kidney, pretend, forsooth, to crack their jokes on
            prudence.                             --Burns.
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   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.
         [1913 Webster]

   3. A waiter. [Old Cant] --Tatler.
      [1913 Webster]

   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. Kidney-form

The Collaborative International Dictionary of English v.0.48:

Lady's finger \La"dy's fin"ger\,
   1. pl. (Bot.) The kidney vetch, Anthyllis vulneraria;
      called also lady's fingers.
      [1913 Webster]

   2. (Cookery) A variety of small cake of about the dimensions
      of a finger.
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   3. A long, slender variety of the potato.
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   4. (Zool.) One of the branchiae of the lobster.
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   5. (Bot.) A tall coarse annual (Abelmoschus esculentus) of
      Old World tropics widely cultivated in southern U. S. and
      West Indies for its long mucilaginous green pods used as
      basis for soups and stews; it is sometimes placed in the
      genus Hibiscus. [WordNet sense 1]

   Note: different from lady's fingers

   Syn: okra, gumbo, okra plant, Abelmoschus esculentus,
        Hibiscus esculentus.
        [WordNet 1.5]

The Collaborative International Dictionary of English v.0.48:

Vetch \Vetch\ (v[e^]ch), n. [Also fitch; OE. ficche, feche, for
   veche, OF. veche, vecce, vesche, vesce, F. vesce, fr. L.
   vicia.] (Bot.)
   Any leguminous plant of the genus Vicia, some species of
   which are valuable for fodder. The common species is Vicia
   sativa.
   [1913 Webster]

   Note: The name is also applied to many other leguminous
         plants of different genera; as the chichling vetch, of
         the genus Lathyrus; the horse vetch, of the genus
         Hippocrepis; the kidney vetch (Anthyllis
         vulneraria); the milk vetch, of the genus
         Astragalus; the licorice vetch, or wild licorice
         (Abrus precatorius).
         [1913 Webster]

WordNet (r) 3.0 (2006):

Anthyllis vulneraria
    n 1: perennial Eurasian herb having heads of red or yellow
         flowers and common in meadows and pastures; formerly used
         medicinally for kidney disorders [syn: kidney vetch,
         Anthyllis vulneraria]