heartwater

noun
heart·​wa·​ter | \ ˈhärt-ˌwȯt-ər, -ˌwät- How to pronounce heartwater (audio) \

Medical Definition of heartwater

: a serious febrile disease of sheep, goats, and cattle in southern Africa that is caused by a bacterium of the genus Ehrlichia (E. ruminantium) transmitted by a bont tick (Amblyomma hebraeum)

called also heartwater disease, heartwater fever