motion sickness vs kinetosis

motion sickness and kinetosis both are nouns.

Word	Noun	Adjective	Verb	Adverb
motion sickness	Yes	No	No	No
kinetosis	Yes	No	No	No

As nouns, motion sickness and kinetosis are synonyms defined as:

motion sickness and kinetosis: the state of being dizzy or nauseated because of the motions that occur while traveling in or on a moving vehicle

motion sickness (noun)	kinetosis (noun)
the state of being dizzy or nauseated because of the motions that occur while traveling in or on a moving vehicle	the state of being dizzy or nauseated because of the motions that occur while traveling in or on a moving vehicle