Search Result for "underlip": 
Wordnet 3.0

NOUN (1)

1. the lower lip; 



The Collaborative International Dictionary of English v.0.48:

Underlip \Un"der*lip`\, n.
   The lower lip.
   [1913 Webster]


WordNet (r) 3.0 (2006):

underlip
    n 1: the lower lip