n., pl., -neu·ri·a (-nʊr'ē-ə, -nyʊr'-).
The sheath of connective tissue enclosing a bundle of nerve fibers.
[New Latin : PERI- + Greek neuron, nerve; see neuron.]
perineurial per'i·neu'ri·al adj.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.