American Heritage Dictionary
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Century Dictionary
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GNU Webster's 1913
WordNet
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Elsewhere on the web
The genes are forced into producing all this myelin, all the fat to myelinate the brain.— Susan Blackmore on memes and "temes"
"The myelin, which is the insulation around the nerves, like the covering around a wire, was gone," he explains.— Thestar.com - Home Page
(This interior part of the brain looks white because the axons are sheathed in myelin, a white insulating protein that helps signals travel more quickly.)— Scientific American
"Anti-myelin-associated glycoprotein serum levels were significantly higher in autistic children than those without such history," the authors wrote.— Signs of the Times
A coating which encloses the nerves -- called the myelin sheath -- forms less successfully whenever B12 is deficient.— The World's Healthiest Foods

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