noun.Madness, especially as caused by inflammation of the brain; meningitis.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
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)
Word Usage
"And many were attacked with impairment or loss of speech; at first, those in the commencement of phthisis, but also persons in ardent fever and in phrenitis."