node of Ranvier

[rahn-vyey, rahn-vyey]

noun Cell Biology.

a gap occurring at regular intervals between segments of myelin sheath along a nerve axon.

Origin of node of Ranvier

1880–85; after Louis-Antoine Ranvier (1835–1922), French histologist, who described it in 1878
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for node of ranvier

node of Ranvier

noun

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

Word Origin for node of Ranvier

C19: named after Louis-Antoine Ranvier (1835–1922), French histologist
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012