单词	nagana
释义	nagana /nəˈɡɑːnə / noun [mass noun] A disease of cattle, antelope, and other livestock in southern Africa, characterized by fever, lethargy, and oedema, and caused by trypanosome parasites transmitted by the tsetse fly.The tsetse fly carries the trypanosome parasite, which causes sleeping sickness in humans and nagana in livestock.... Tsetse flies that infect cattle with nagana (animal trypanosomosis) have been ‘all but eradicated from Zimbabwe's farming areas’ he says. Further north the scourge of tsetse fly, vector of the disease nagana, limited the use of cattle as draught. Origin Late 19th century: from Zulu nakane.
随便看	cremaster muscle cremate cremation cremator crematorium crematory creme cremini Cremona crenate crenated crenation crenel crenelate crenellate crenellations crenelle crenulate crenulated crenulation creodont Creole Creolean Creole black creole continuum

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