Trypanosomatidae

noun plural

Try·​pano·​so·​mat·​i·​dae tri-ˌpan-ə-sō-ˈmat-ə-ˌdē 

: a family (order Trypanosomatida) of strictly parasitic more or less slender and elongated uniflagellate protozoans that includes serious pathogens of humans and domestic animals