central gyrus vs convolution

central gyrus and convolution both are nouns.

Word	Noun	Adjective	Verb	Adverb
central gyrus	Yes	No	No	No
convolution	Yes	No	No	No

As nouns, convolution is a hypernym of central gyrus; that is, convolution is a word with a broader meaning than central gyrus:

Other hypernyms of central gyrus include gyrus.

central gyrus (noun)	convolution (noun)
either of two gyri on either side of the central sulcus	the action of coiling or twisting or winding together
	a convex fold or elevation in the surface of the brain
	the shape of something rotating rapidly