4.Any of various parasitic flagellate protozoans of the genus Trypanosoma, transmitted to the vertebrate bloodstream, lymph, and spinal fluid by certain insects and often causing diseases such as sleepingsickness and nagana.
5.The mammalian salivaria causes African sleepingsickness in human and trypanosomiasis in domestic animals and the study of the protozoon occupies an important place in human medicine and veterinary medicine.
