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[ep-uh-noo r-ee-uh m, -nyoo r-] /ˌɛp əˈnʊər i əm, -ˈnyʊər-/
noun, plural epineuria
[ep-uh-noo r-ee-uh, -nyoo r-] /ˌɛp əˈnʊər i ə, -ˈnyʊər-/ (Show IPA).
the dense sheath of connective tissue that surrounds the trunk of a nerve.
Origin of epineurium
1880-85; < New Latin, equivalent to epi- epi- + Greek neûron sinew, tendon + New Latin -ium -ium
Related forms
epineurial, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for epineurium


a sheath of connective tissue around two or more bundles of nerve fibres
Derived Forms
epineurial, adjective
Word Origin
C19: from New Latin, from epi- + Greek neuron nerve + -ium
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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epineurium in Medicine

epineurium ep·i·neu·ri·um (ěp'ə-nur'ē-əm, -nyur'-)
n. pl. ep·i·neu·ri·a (-nur'ē-ə, -nyur'-)
The thick sheath of connective tissue surrounding a nerve trunk.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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