Definition of onchocerciasis
plural onchocerciases
play
\ˌäŋ-kō-ˌsər-ˈkī-ə-ˌsēz, ˌäŋ-kə-\
:infestation with or disease caused by filarial worms (genus Onchocerca);
especially
:a human disease marked by subcutaneous nodules, dermatitis, and visual impairment and caused by a worm (O. volvulus) found in Africa and tropical America which is transmitted by the bite of a female blackfly — called also
river blindness
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