Definition of "nagana" [na•ga•na]

• 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. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "These flies carry a microscopic organism called a trypanosome which is communicated to cattle causing a deadly disease called "nagana"; certain species of the fly carry a special variety of trypanosome which produces "sleeping sickness" in man."
• "J. 7 Traps for tsetse fly (human sleeping sickness, cattle nagana) control, Burkina Faso"
• "Currently, the mainstay of the control of tsetse flies, vectors of trypanosomiasis (causing sleeping sickness in humans and nagana in cattle) is the use of traps (slide J. 7)."