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perineurium

American

[per-uh-noor-ee-uhm, -nyoor-] / ˌpɛr əˈnʊər i əm, -ˈnyʊər- /

noun

Anatomy.

plural

perineuria

the sheath of connective tissue that encloses a bundle of nerve fibers.

perineurium British

/ ˌpɛrɪˈnjʊərɪəm /

noun

the connective tissue forming a sheath around a single bundle of nerve fibres

"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

Other Word Forms

perineurial adjective
perineurical adjective

Etymology

Origin of perineurium

From New Latin, dating back to 1835–45; peri-, neur-, -ium

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The nerve fibres there figured are bound together by endoneurium into small ropes, the nerves, encased in perineurium.

From Project Gutenberg

The tumours, which vary greatly in size and number—as many as a thousand have been counted in one case—are enclosed in a capsule derived from the perineurium.

From Project Gutenberg

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023