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nodes of ranvier

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node of Ran·vier   (rän'vyā, rän-vyā', räɴ-)   
n.   pl. nodes of Ranvier
A constriction in the myelin sheath, occurring at varying intervals along the length of a nerve fiber.

[After Louis Antoine Ranvier (1835-1922), French histologist.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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nodes of ranvier

noun
small gaps in the myelin sheath of medullated axons [syn: Ranvier's nodes
WordNet® 3.0, © 2006 by Princeton University.
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