circumvolution vs rotary motion

circumvolution and rotary motion both are nouns.

Word	Noun	Adjective	Verb	Adverb
circumvolution	Yes	No	No	No
rotary motion	Yes	No	No	No

As nouns, rotary motion is a hypernym of circumvolution; that is, rotary motion is a word with a broader meaning than circumvolution:

circumvolution: the act of turning or winding or folding around a central axis
rotary motion: the act of rotating as if on an axis

Other hypernyms of circumvolution include rotation.

circumvolution (noun)	rotary motion (noun)
the act of turning or winding or folding around a central axis	the act of rotating as if on an axis