Wiktionary
encephalitides
n. (plural of encephalitis English)
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)]