Search Result for "parainfluenza virus":
Wordnet 3.0

NOUN (1)

1. a virus that causes upper respiratory infection (including the common cold and bronchiolitis); most often in children; 



WordNet (r) 3.0 (2006):

parainfluenza virus
    n 1: a virus that causes upper respiratory infection (including
         the common cold and bronchiolitis); most often in children