Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A constriction in the myelin sheath, occurring at varying intervals along the length of a nerve fiber.
 
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun anatomy  A small 
constriction in themyelin sheath ofaxons  
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
[After Louis Antoine   Ranvier,  (1835–1922), French histologist.]
 from Wiktionary, Creative Commons Attribution/Share-Alike License
For Louis-Antoine Ranvier French physician
			
		
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Examples
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