onchocerciasis

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• onchocerciasis — n. (Med.) An infection with nematodes of the genus {Onchocerca}, especially {Onchocerca volvulus}. Untreated, such infections can cause serious dermatological problems, and in advanced cases may lead to blindness. In certain areas of tropical… …   The Collaborative International Dictionary of English

• onchocerciasis — [äŋ΄kō sər kī′ə sis] n. a fly transmitted tropical disease in which parasitic filarial worms (genus Onchocerca) cause tumors, skin lesions, and blindness; river blindness …   English World dictionary

• Onchocerciasis — River Blindness redirects here. For the song by J. Geils Band, see Freeze Frame (J. Geils Band album). Onchocerciasis Classification and external resources Adult black fly (Simulium yahense) with parasite (Onchocerca volvulus) emerging from the… …   Wikipedia

• onchocerciasis — /ong koh seuhr kuy euh sis/, n. Pathol. an infestation with filarial worms of the genus Onchocerca, common in tropical America and Africa, transmitted by black flies, and characterized by nodules under the skin, an itchy rash, eye lesions, and in …   Universalium

• Onchocerciasis — River blindness, a disease caused by a parasitic worm (Onchocerca volvulus) which is transmitted to persons by biting blackflies (buffalo gnats) that breed in fast flowing rivers. The adult worms can live for up to 15 years in nodules beneath the …   Medical dictionary

• onchocerciasis — n. a tropical disease of the skin and underlying connective tissue caused by the parasitic worm Onchocerca volvulus. Fibrous nodular tumours grow around the adult worms in the skin; these may take several months to appear, and if secondary… …   The new mediacal dictionary

• onchocerciasis — noun (plural onchocerciases) Etymology: New Latin, from Onchocerca, genus of worms Date: 1911 infestation with or disease caused by filarial worms (genus Onchocerca); especially a human disease marked by subcutaneous nodules, dermatitis, and… …   New Collegiate Dictionary

• onchocerciasis — noun /ɒŋkəsɜːˈkaɪəsɪs/ A disease caused by a worm of the genus Onchocerca, especially as transmitted to humans by flies and often causing blindness; common in tropical Africa. Syn: river blindness …   Wiktionary

• onchocerciasis — [ˌɒŋkəʊsə: sʌɪəsɪs, kʌɪəsɪs] noun technical term for river blindness. Origin early 20th cent.: from mod. L. Onchocerca (genus name of the parasite causing the disease, from Gk onkos barb + kerkos tail ) + iasis …   English new terms dictionary

• onchocerciasis — on·cho·cer·ci·a·sis …   English syllables

• onchocerciasis — noun 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: ↑river blindness • Hypernyms:… …   Useful english dictionary