- inflammation of the substance of the brain.
- Also called encephali·tis le·thar·gi·ca [li-thahr-ji-kuh] /lɪˈθɑr dʒɪ kə/. a form of this condition, caused by a filterable virus and characterized by apathy and abnormal sleepiness; sleeping sickness.
Origin of encephalitis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- pathol a technical name for sleeping sickness (def. 2)
- inflammation of the brain
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for encephalitis lethargica
Online Etymology Dictionary, © 2010 Douglas Harper
- A viral epidemic encephalitis characterized by apathy, paralysis of an eye muscle, and extreme muscular weakness.sleeping sickness von Economo's disease
acute epidemic leukoencephalitis
- A usually fatal form of leukoencephalitis that is characterized by acute onset of fever, followed by convulsions, delirium, and coma, and is associated with localized hemorrhaging in the central nervous system.Strümpell's disease
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- Inflammation of the brain, usually caused by infection with a virus.
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