node of Ranvier

 [rahn-vyey, rahn-vyey]  

node of Ran·vier

   [rahn-vyey, rahn-vyey]
noun Cell Biology.
a gap occurring at regular intervals between segments of myelin sheath along a nerve axon.
Origin:
1880–85; after Louis-Antoine Ranvier (1835–1922), French histologist, who described it in 1878
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Node of Ranvier is always a great word to know.
So is quincunx. Does it mean:
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
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Collins
World English Dictionary
node of Ranvier (ˈrɑːnvɪˌeɪ)
 
—n
any of the gaps that occur at regular intervals along the length of the sheath of a myelinated nerve fibre, at which the axon is exposed
 
[C19: named after Louis-Antoine Ranvier (1835--1922), French histologist]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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