Mansonella
nounMedical Definition of Mansonella
: a genus of filarial worms (as Mansonella ozzardi, M. perstans, and M. streptocerca) of Africa, South American and Central America that are parasitic in humans, are transmitted by biting midges (genus Culicoides) and blackflies (genus Simulium), and produce microfilariae which are found in the bloodstream and subcutaneous tissue