Meaning of myelin

my•e•lin

Pronunciation: (mī'u-lin), [key]
— n. Biol.
  1. a soft, white, fatty material in the membrane of Schwann cells and certain neuroglial cells: the substance of the myelin sheath.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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