Definify.com
Webster 1913 Edition
Perineurium
‖
Perˊi-neu′ri-um
,Noun.
 [NL., fr. Gr. 
περί 
about + νεῦρον 
a nerve.] (Anat.) 
The connective tissue sheath which surrounds a bundle of nerve fibers. See 
Epineurium
, and Neurilemma
. Definition 2025
perineurium
perineurium
English
Noun
perineurium (plural perineuria)
- (anatomy) The sheath of connective tissue that surrounds a fascicle of nerve fibres