Definition of Onchocerciasis

Noun: onchocerciasis  ,ón-kow,sur'kI-u-sis or ,ón-kow,sur'sI-u-sis

1. Infestation with slender threadlike roundworms (filaria) deposited under the skin by the bite of black fleas; when the eyes are involved it can result in blindness; common in Africa and tropical America
   - river blindness

See also:
onchocerciases
oncidium