Search Result for "antihistamine": 
Wordnet 3.0

NOUN (1)

1. a medicine used to treat allergies and hypersensitive reactions and colds; works by counteracting the effects of histamine on a receptor site; 



WordNet (r) 3.0 (2006):

antihistamine
    n 1: a medicine used to treat allergies and hypersensitive
         reactions and colds; works by counteracting the effects of
         histamine on a receptor site