pronation vs rotation

pronation and rotation both are nouns.

Word	Noun	Adjective	Verb	Adverb
pronation	Yes	No	No	No
rotation	Yes	No	No	No

As nouns, rotation is a hypernym of pronation; that is, rotation is a word with a broader meaning than pronation:

pronation: rotation of the hands and forearms so that the palms face downward
rotation: the act of rotating as if on an axis

Other hypernyms of pronation include rotary motion.

pronation (noun)	rotation (noun)
rotation of the hands and forearms so that the palms face downward	the act of rotating as if on an axis
	a planned recurrent sequence (of crops or personnel etc.)
	a single complete turn (axial or orbital)
	(mathematics) a transformation in which the coordinate axes are rotated by a fixed angle about the origin