the GNU version of the Collaborative International Dictionary of English
n. Same as phrenitis.
The Century Dictionary and Cyclopedia
n. In pathology, inflammation of the brain or its membranes.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
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)