perineurium

noun

: the connective-tissue sheath that surrounds a bundle of nerve fibers

Word History

Etymology

New Latin, from peri- + Greek neuron nerve — more at nerve

First Known Use

1867, in the meaning defined above

Time Traveler
The first known use of perineurium was in 1867

Browse Nearby Words

Cite this Entry

“Perineurium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/perineurium. Accessed 21 Mar. 2025.

Medical Definition

perineurium

noun
: the sheath of connective tissue that surrounds a bundle of nerve fibers
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