Phrenitis

n.	1.	(Med.) Inflammation of the brain, or of the meninges of the brain, attended with acute fever and delirium; - called also cephalitis.
	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

acute hemorrhagic encephalitis, acute inclusion body encephalitis, cephalitis, cerebromeningitis, encephalitis, encephalitis lethargica, encephalomeningitis, epidemic encephalitis, equine encephalitis, equine encephalomyelitis, herpes encephalitis, herpes simplex encephalitis, inflammation, lethargic encephalitis, leukoencephalitis, meningoencephalitis, panencephalitis, redness, rubor, sleeping sickness, sleepy sickness, West Nile encephalitis