|an infectious venereal disease of horses characterized by swollen glands, inflamed genitals, and paralysis of the hindquarters, caused by the protozoan Trypanosoma equiperdum contracted during copulation|
|[C19: from French, from Arabic darina to be dirty, scabby]|
|the offspring of a zebra and a donkey.|
|a chattering or flighty, light-headed person.|
venereal disease of horses, caused by the protozoan Trypanosoma equiperdum. The disease, which involves paralysis, is incurable. Serum tests have largely eradicated it in advanced countries, where a positive test requires the destruction of the animal. Trypanosomiasis, also caused by Trypanosoma, is known in two forms, Chagas' disease and sleeping sickness (qq.v.).
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