- Also 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.
- Also called epidemic encephalitis, lethargic encephalitis. a viral disease affecting the brain, characterized by apathy, sleepiness, extreme muscular weakness, and impairment of vision.
- pathol a technical name for sleeping sickness (def. 2)
- 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 drowsinessTechnical name: encephalitis lethargica
- encephalitis lethargica
- An often fatal protozoan infection prevalent in tropical Africa, caused by either of two trypanosomes spread by the bite of the tsetse fly and characterized by fever and extreme lethargy.
- Encephalitis that is caused by any of various viruses and is characterized by lethargy and extreme muscular weakness.