Source : WordNet®

encephalitides
     See {encephalitis}

encephalitis
     n : inflammation of the brain usually caused by a virus;
         symptoms include headache and neck pain and drowsiness
         and nausea and fever (`phrenitis' is no longer in
         scientific use) [syn: {cephalitis}, {phrenitis}]
     [also: {encephalitides} (pl)]