sleepy sickness

from WordNet (r) 3.0 (2006)
sleepy sickness
    n 1: an encephalitis that was epidemic between 1915 and 1926;
         symptoms include paralysis of the extrinsic eye muscle and
         extreme muscular weakness [syn: {sleeping sickness},
         {sleepy sickness}, {epidemic encephalitis}, {lethargic
         encephalitis}, {encephalitis lethargica}]
    

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