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Noun: epidemic encephalitis  `e-pi'de-mik en`se-fu'lI-tis
  1. An encephalitis that was epidemic between 1915 and 1926; symptoms include paralysis of the extrinsic eye muscle and extreme muscular weakness
    - sleeping sickness, sleepy sickness, lethargic encephalitis, encephalitis lethargica

Type of: cephalitis, encephalitis, phrenitis [archaic]