SYN: external.
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externus see OBLIQUUS EXTERNUS, OBLIQUUS EXTERNUS ABDOMINIS, OBTURATOR EXTERNUS, SPHINCTER ANI EXTERNUS, VASTUS EXTERNUS
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ex·ter·nus (ek-sturґnəs) [TA] external: a term denoting a structure or an aspect farther from the center of a part or cavity.Medical dictionary. 2011.