The Collaborative International Dictionary of English v.0.48:

Uvula \U"vu*la\, n. [NL., dim of L. uva a grape, the uvula.]
   (Anat.)
   The pendent fleshy lobe in the middle of the posterior border
   of the soft palate.
   [1913 Webster]

   Note: The term is also applied to a somewhat similar lobe on
         the under side of the cerebellum and to another on the
         inner surface of the neck of the bladder.
         [1913 Webster]

WordNet (r) 3.0 (2006):

uvula
    n 1: a small pendant fleshy lobe at the back of the soft palate