Pronunciation: (soor'u), [key]
—n. Vet. Pathol.
an often fatal infectious disease of horses, camels, elephants, and dogs caused by a blood-infecting protozoan parasite, Trypanosoma evansi, transmitted by the bite of horseflies, characterized by fever, anemia, and emaciation.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.