DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   nerves
       n 1: an uneasy psychological state; "he suffered an attack of
            nerves" [syn: nervousness, nerves]
       2: control of your emotions; "this kind of tension is not good
          for my nerves"