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myelin |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Myelin \My"e*lin\, n. [Gr. ? marrow.] (Physiol. Chem.) a A soft white substance constituting the medullary sheats of nerve fibers, and composed mainly of cholesterin, lecithin, cerebrin, albumin, and some fat. b One of a group of phosphorized principles occurring in nerve tissue, both in the brain and nerve fibers. From WordNet r 1.6 [wn]: myelin n : a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers [syn: {myeline}, {medulla}]
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