obturator externus
/ˈɒbtjʊreɪtə ɛkˈstəːnəs/ /ˈɒbtʃʊreɪtə ɛkˈstəːnəs/Anatomy and Zoology
noun
A flat, fan-shaped muscle that covers the external surface of the obturator foramen, and serves to rotate the thigh laterally.
Origin
Early 17th century; earliest use found in Helkiah Crooke (1576–1648), physician and anatomist. From post-classical Latin obturator externus from obturator + externus outer.
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