- a cell of the peripheral nervous system that wraps around a nerve fiber, jelly-roll fashion, forming the myelin sheath.
Origin of Schwann cell
1930–35; after T. Schwann, who first described it
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Schwann cell(shwän, shvän)
- Any of the cells that cover the nerve fibers in the peripheral nervous system and form the myelin sheath.neurilemma neurilemma cell
- Any of the cells that cover the axons in the peripheral nervous system and form the myelin sheath. See more at myelin.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.