Wordnet 3.0
NOUN (1)
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; 
[syn: onchocerciasis, river blindness]
WordNet (r) 3.0 (2006):
river blindness
    n 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 [syn: onchocerciasis, river
         blindness]