The Collaborative International Dictionary of English v.0.48:

Caruncle \Car"un*cle\, Caruncula \Ca*run"cu*la\, n. [L.
   caruncula a little piece of flesh, dim. of caro flesh.]
   1. (Anat.) A small fleshy prominence or excrescence;
      especially the small, reddish body, the

   caruncula lacrymalis, in the inner angle of the eye.
      [1913 Webster]

   2. (Bot.) An excrescence or appendage surrounding or near the
      hilum of a seed.
      [1913 Webster]

   3. (Zool.) A naked, flesh appendage, on the head of a bird,
      as the wattles of a turkey, etc.
      [1913 Webster] Caruncular

WordNet (r) 3.0 (2006):

caruncle
    n 1: an outgrowth on a plant or animal such as a fowl's wattle
         or a protuberance near the hilum of certain seeds [syn:
         caruncle, caruncula]