Search Result for "postnasal drip":
Wordnet 3.0

NOUN (1)

1. chronic secretion of mucus from the rear of the nasal cavity into the nasopharynx; 



WordNet (r) 3.0 (2006):

postnasal drip
    n 1: chronic secretion of mucus from the rear of the nasal
         cavity into the nasopharynx