/ Dictionary / Index N node of Ranvier: Meaning and Definition of Find definitions for: node' of Ran•vier' Pronunciation: (rän-vyā', rän'vyā), [key] — Cell Biol. Cell Biol. a gap occurring at regular intervals between segments of myelin sheath along a nerve axon. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. node nodical Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language