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Medical Definition of Metorchis
1. A genus of opisthorchid fish-borne flukes parasitic in the gallbladder of fish-eating mammals and birds, common in north temperate regions. Metorchis conjunctus is a species that occurs in dogs and cats, and occasionally in humans, in North America. Origin: G. Meta, behind, + orchis, testicle (05 Mar 2000)