from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A viral epidemic encephalitis marked by apathy, paralysis of the extrinsic eye muscle, and extreme muscular weakness. It occurred in various parts of the world between 1915 and 1926. Also called sleeping sickness, sleepy sickness.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an encephalitis that was epidemic between 1915 and 1926; symptoms include paralysis of the extrinsic eye muscle and extreme muscular weakness
New Latin encephalītis lēthargica : encephalītis, encephalitis + Latin lēthargica, feminine of lēthargicus, sleepy.(American Heritage® Dictionary of the English Language, Fourth Edition)