epineurium

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noun

The connective tissue framework and sheath of a nerve which bind together the nerve bundles, each of which has its own special sheath, or perineurium; The outermost layer of dense irregular connective tissue surrounding a peripheral nerve.

OriginNew Latin epineurium ← Ancient Greek ἐπι- →
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Meanings

nounepineurium (plural epineuriums or epineuria)

plural epineuriums · plural epineuria

  1. anatomyThe connective tissue framework and sheath of a nerve which bind together the nerve bundles, each of which has its own special sheath, or perineurium; The outermost layer of dense irregular connective tissue surrounding a peripheral nerve.

Origin

  1. Ancient Greekἐπι-“upon”
  2. New Latinepineurium
  3. Englishepineurium

From New Latin epineurium, from Ancient Greek ἐπι- (epi-, “upon”) + νεῦρον (neûron, “nerve”).

More words from New Latin, Ancient Greek

Full word history & related roots →
Cite this entry
APA

epineurium. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/epineurium

MLA

“epineurium.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/epineurium. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “epineurium,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/epineurium.

Source: epineurium on Wiktionary, CC BY-SA 4.0.