perineurium

[ per-uh-noor-ee-uhm, -nyoor- ]

noun

, Anatomy.

, plural per·i·neu·ri·a [per-, uh, -, noor, -ee-, uh, -, nyoor, -].

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

perineurium

/ ˌpɛrɪˈnjʊərɪəm /

noun

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

Derived Forms

• ˌperiˈneurial, adjective

Other Words From

• peri·neuri·cal adjective

Word History and Origins

Origin of perineurium¹

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

Word History and Origins

Origin of perineurium¹

C19: from New Latin, from peri- + Greek neuron nerve

Example Sentences

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