• (1)تعریف: a usu. fatal infectious disease found in tropical Africa, characterized by fever, weakness, and tremors, and transmitted by tsetse flies.
• (2)تعریف: a viral disease characterized by apathy and sleepiness.
انگلیسی به انگلیسی
• tropical disease which causes extended loss of consciousness sleeping sickness is an illness that is spread by certain types of insect and makes people feverish and extremely tired.