Seasickness

noun

1. Motion sickness resulting from the pitching and rolling of a ship or boat in water, especially at sea.
2. The state or condition of being seasick.
3. The peculiar sickness, characterized by nausea and prostration, which is caused by the pitching or rolling of a vessel.
4. Nausea, dizziness etc caused by the motion of a ship; a form of motion sickness.
5. motion sickness experienced while traveling on water