Source : Webster's Revised Unabridged Dictionary (1913)

Lady's finger \La"dy's fin"ger\,
   1. pl. (Bot.) The kidney vetch.

   2. (Cookery) A variety of small cake of about the dimensions
      of a finger.

   3. A long, slender variety of the potato.

   4. (Zo["o]l.) One of the branchi[ae] of the lobster.