[1] : The Collaborative International Dictionary of English v.0.48

papilla \papil"la\, n.; pl. papillae. l., a nipple,
   pimple.
   any minute nipplelike projection; as, the papillae of the
   tongue.
   1913 webster
see also:
papillae 

[2] : WordNet (r) 2.0

papilla
     n 1: a small nipple-shaped protuberance concerned with taste,
          touch, or smell; "the papillae of the tongue"
     2: a small projection of tissue at the base of a hair or tooth
        or feather
     also: papillae pl
see also:
papillae 

[3] : WordNet (r) 2.0

papillae
     see papilla
see also:
papilla 

Papillae >> P Words
Papillae, definition of term: Papillae
papillae_pag1.html