gap vs Ranvier's nodes

gap and Ranvier's nodes both are nouns.

Word	Noun	Adjective	Verb	Adverb
gap	Yes	No	Yes	No
Ranvier's nodes	Yes	No	No	No

As nouns, Ranvier's nodes is a hyponym of gap; that is, Ranvier's nodes is a word with a more specific, narrower meaning than gap:

gap (noun)	Ranvier's nodes (noun)
an act of delaying or interrupting the continuity	small gaps in the myelin sheath of medullated axons
a narrow opening
a conspicuous disparity or difference as between two figures
a difference (especially an unfortunate difference) between two opinions or two views or two situations
an open or empty space in or between things
a pass between mountain peaks; geomorphological term for the lowest point on a mountain ridge between two peaks

gap (verb)	Ranvier's nodes (verb)
make an opening or gap in