'sleeping sickness' definitions:

Definition of 'sleeping sickness'

From: WordNet
noun
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]

Synonyms of 'sleeping sickness'

From: Moby Thesaurus