an infectious disease affecting horses and cattle in tropical Africa, caused by a trypanosome (Trypanosoma brucei) transmitted by the bite of infected tsetse flies
Origin:
< Zulu u(lu)-nakane
See nagana in American Heritage Dictionary 4
also n'ga·na
noun
An often fatal disease of African ungulates caused by various species of trypanosomes and transmitted by the bite of the tsetse fly. Also called tsetse disease.