Relating to or describing something that is positioned between the external surface and the median or middle line; intermediate in location between the outer and central parts.
From external (Latin externus, 'outer') + median (Latin medianus, 'middle') + -an (suffix). A technical anatomical term combining two Latin roots to describe position.
Anatomists use 'externomedian' when describing muscles, nerves, or structures in surgical planning—it's precision language that lets surgeons visualize exactly where to cut without damaging nearby structures.
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