myelin [ mahy- uh-lin ] SHOW IPA / ˈmaɪ ə lɪn / PHONETIC RESPELLING noun Biology. a soft, white, fatty material in the membrane of Schwann cells and certain neuroglial cells: the substance of the myelin sheath. QUIZZES QUIZ YOURSELF ON AFFECT VS. EFFECT!
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The rainy weather could not ________ my elated spirits on my graduation day.
my·e·line [ mahy- uh-leen]. /ˈmaɪ əˌlin/. Origin of myelin
First recorded in 1865–70;
-in 2 OTHER WORDS FROM myelin my·e·lin·ic, adjective Words nearby myelin myel-
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for myelin noun a white tissue forming an insulating sheath ( myelin sheath) around certain nerve fibres. Damage to the myelin sheath causes neurological disease, as in multiple sclerosis Derived forms of myelin myelinic, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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n. A white fatty material composed chiefly of alternating layers of lipids and lipoproteins that encloses the axons of myelinated nerve fibers. Droplets of lipid formed during autolysis and postmortem decomposition. Other words from myelin my′e•lin ′ic adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
A whitish, fatty substance that forms a sheath around many vertebrate nerve fibers. Myelin insulates the nerves and permits the rapid transmission of nerve impulses. The white matter of the brain is composed of nerve fibers covered in myelin.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.