noun . Pathology inflammation of the substance of the brain. Also called encephali·tis le·thar·gi·ca . [li- thahr-ji-k uh] /lɪˈθɑr dʒɪ kə/ a form of this condition, caused by a filterable virus and characterized by apathy and abnormal sleepiness; sleeping sickness. Related forms en·ceph·a·lit·ic , [en-sef- uh- lit-ik] /ɛnˌsɛf əˈlɪt ɪk/ adjective post·en·ceph·a·lit·ic, adjective pseu·do·en·ceph·a·lit·ic, adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for encephalitis lethargica noun inflammation of the brain Derived Forms encephalitic ( ˌɛnsɛfəˈlɪtɪk), adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for encephalitis lethargica n.
1843, from medical Latin
encephalon (from Greek enkephalos "brain," literally "within the head," from en "in" + kephale "head;" see cephalo-) + -itis.
Online Etymology Dictionary, © 2010 Douglas Harper
Medicine definitions for encephalitis lethargica encephalitis lethargica [lə-thär ′jĭ-kə] n. A viral epidemic encephalitis characterized by apathy, paralysis of an eye muscle, and extreme muscular weakness. sleeping sickness von Economo's disease encephalitis [ĕn-sĕf′ə-lī ′tĭs] n. pl. en•ceph•a•lit•i•des ( -lĭt) ′ĭ-dēz Inflammation of the brain. cephalitis Related forms en•ceph′a•lit ( ′ic -lĭt) ′ĭk adj.
The American Heritage® Stedman's Medical Dictionary
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Science definitions for encephalitis lethargica Inflammation of the brain, usually caused by infection with a virus.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Culture definitions for encephalitis lethargica encephalitis [(en-sef-uh- leye-tis)]
inflammation of the brain. Encephalitis may be caused by a virus or lead poisoning, or it may be a complication of another disease, such as influenza or measles. Encephalitis can cause permanent brain damage or death. It is also possible, however, to recover from it completely.
The New Dictionary of Cultural Literacy, Third Edition
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