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Onchocerca

noun

On·​cho·​cer·​ca ˌäŋ-kə-ˈsər-kə How to pronounce Onchocerca (audio)
: a genus of long slender filarial worms of the family Onchocercidae that are parasites of subcutaneous and connective tissues of mammals with their adults enclosed in fibrous nodules and their larvae free in the tissues
onchocercal adjective

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Cite this Entry

“Onchocerca.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/Onchocerca. Accessed 26 Nov. 2025.

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