Search Result for "night terror":
Wordnet 3.0

NOUN (1)

1. an emotional episode (usually in young children) in which the person awakens in terror with feelings of anxiety and fear but is unable to remember any incident that might have provoked those feelings; 



WordNet (r) 3.0 (2006):

night terror
    n 1: an emotional episode (usually in young children) in which
         the person awakens in terror with feelings of anxiety and
         fear but is unable to remember any incident that might have
         provoked those feelings