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Medical Definition of Linognathus
1. A genus of sucking lice (order Anoplura, family Linognathidae) that includes the species Linognathus africanus, the African blue louse of sheep and goats; Linognathus ovillus, the sheep body louse; Linognathus pedalis, the foot louse of sheep; Linognathus setosus, the sucking louse of the dog and other canids; Linognathus stenopsis, the sucking louse of goats; and Linognathus vituli, the "long-nosed" sucking louse, ox louse, or blue louse of cattle. Origin: G. Linon, flax, thread, + gnathos, jaw (05 Mar 2000)