n. | 1. | (Med.) Inflammation of the brain, or of the meninges of the brain, attended with acute fever and delirium; - called also |
2. | See Frenzy. |
Noun | 1. | phrenitis - 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) Synonyms: cephalitis, encephalitis |