motion sickness

US /ˈmoʊ.ʃən ˌsɪk.nəs/
UK /ˈmoʊ.ʃən ˌsɪk.nəs/
"motion sickness" picture
1.

a feeling of nausea and dizziness caused by motion, typically in a vehicle or on a boat

:
She always gets motion sickness on long car rides.
Taking medication can help prevent motion sickness.