Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The thick sheath of connective tissue surrounding a nerve trunk.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The connective tissue framework and sheath of a nerve which bind together the nerve bundles, each of which has its own special sheath, or perineurium.

from the GNU version of the Collaborative International Dictionary of English

  • n. The connective tissue framework and sheath of a nerve which bind together the nerve bundles, each of which has its own special sheath, or perineurium.

from The Century Dictionary and Cyclopedia

  • n. The sheath of connective tissue around a fasciculus of nerve-tissue, as distinguished from the finer sheath of perineurium which similarly surrounds the smaller bundles or funiculi of which a nerve is ultimately composed. See funiculus and perineurium.

Etymologies

New Latin : epi- + Greek neuron, nerve, tendon; see neuron.
(American Heritage® Dictionary of the English Language, Fourth Edition)
New Latin, from Ancient Greek, meaning "upon a nerve". (Wiktionary)

Examples

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