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Definition of: epineurium
(ep′ə·n
r′ē·əm, -nyr′-) noun plural ·ri·a (-ē·ə) Anat.
The sheath of connective tissue that surrounds a nerve trunk. [<NL <Gk. epi- upon + neuron nerve, sinew]
—ep′i·neu′ri·al adjective
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