Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun encephalitis_lethargica

1 sense of encephalitis lethargica

Sense 1
sleeping sickness, sleepy sickness, epidemic encephalitis, lethargic encephalitis, encephalitis lethargica -- (an encephalitis that was epidemic between 1915 and 1926; symptoms include paralysis of the extrinsic eye muscle and extreme muscular weakness)
       => encephalitis, cephalitis, phrenitis -- (inflammation of the brain usually caused by a virus; symptoms include headache and neck pain and drowsiness and nausea and fever (`phrenitis' is no longer in scientific use))