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WordReference Random House Learner's Dictionary of American English © 2024sleep•ing sick•ness /ˈslipɪŋ ˌsɪknɪs/USA pronunciation n. [uncountable]- Pathologyan infectious, usually fatal disease of Africa, characterized by great fatigue and a wasting away of the body:Sleeping sickness is carried to the body through the tsetse fly.
- Pathologya viral disease affecting the brain, characterized by sleepiness, muscular weakness, and difficulty in seeing.
WordReference Random House Unabridged Dictionary of American English © 2024sleep′ing sick′ness, [Pathol.]- PathologyAlso called African sleeping sickness, African trypanosomiasis. a generally fatal disease, common in parts of Africa, characterized by fever, wasting, and progressive lethargy: caused by a parasitic protozoan, Trypanosoma gambiense or T. rhodesiense, that is carried by a tsetse fly, Glossina palpalis.
- PathologyAlso called epidemic encephalitis, lethargic encephalitis. a viral disease affecting the brain, characterized by apathy, sleepiness, extreme muscular weakness, and impairment of vision.
Also,[Brit.,] sleepy sickness. Collins Concise English Dictionary © HarperCollins Publishers:: sleeping sickness n - Also called: African sleeping sickness an African disease caused by infection with protozoans of the genus Trypanosoma, characterized by fever, wasting, and sluggishness
- Also called (esp formerly): sleepy sickness an epidemic viral form of encephalitis characterized by extreme drowsiness
Technical name: encephalitis lethargica
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