Dictionary  na•ga•naPronunciation: (nu-gä'nu), [key] —n. Vet. Pathol. 1. a disease of horses and other animals, widespread in parts of Africa, caused by the organism Trypanosoma brucei, and transmitted by a variety of tsetse fly. 2. any trypanosomal disease of animals that is transmitted by the tsetse fly. Also,n'gana. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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