rotation vs pronation

rotation and pronation both are nouns.

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

As nouns, pronation is a hyponym of rotation; that is, pronation is a word with a more specific, narrower meaning than rotation:

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

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