motion sickness

Also found in: Dictionary, Thesaurus, Medical, Legal, Wikipedia.

motion sickness,

waves of nausea and vomiting experienced by some people, resulting from the sudden changes in movement of a vehicle. The ailment is also known as seasickness, car sickness, train sickness, airsickness, and swing sickness. The principal cause of the disturbance is the effect of motion on the semicircular canals of the inner ear, although other factors such as inadequate ventilation and fumes or noxious odors may contribute. Drugs are available that, when taken beforehand, prevent the occurrence of motion sickness.

Motion Sickness


a syndrome occurring in man and some animals as a result of rocking on the sea (seasickness), air turbulence and aerobatics (airsickness), or rapid driving over a winding, bumpy road. It is caused by prolonged stimulation of the vestibular apparatus of the inner ear and by the action of impulses that originate in the internal organs on the autonomic nervous system.

The symptoms of motion sickness include fatigue, dizziness, headache, copious salivation, nausea, vomiting (which causes temporary relief), and the appearance of cold perspiration. Prolonged motion may cause loss of consciousness. Aeron and diphenhydramine are used to prevent and treat motion sickness; persons with a highly sensitive vestibular apparatus may take the drugs before embarking on an airplane or ship. Vestibular training (special exercises that increase the stability of the vestibular apparatus) is also helpful in preventing the syndrome.


Vozhzhova, A. I., and R. A. Okunev. Ukachivanie i bor’ba s nim. Leningrad, 1964.

motion sickness

[′mō·shən ‚sik·nəs]
A complex of symptoms, including nausea, vertigo, and vomiting, occurring as the result of random multidirectional accelerations of a vehicle.

motion sickness

A condition in which a person suffers from nausea and vomiting. Motion sickness includes sea sickness, car sickness, swing sickness, and air sickness. The sickness in the air may be caused by a fear of flying, apprehension at seeing the horizon at different angles, turbulence, unusual attitudes, and g forces. It also may be caused by mismatching between the balance signals from the ear and the visual signals from the eye. Also called air sickness.
References in periodicals archive ?
A prospective crossover observational study on visually induced motion sickness.
18 An involvement of the vestibular system in the development of anticipatory side effects is suggested by the findings that a susceptibility to motion sickness had a higher specificity than any other single characteristic.
K should not take dimenhydrinate to prevent motion sickness because he experienced a manic episode triggered by a scopolamine patch
Like ordinary motion sickness, digital motion sickness stems from a basic mismatch between what your eyes see and your body feels.
For some dogs, motion sickness is the result of a vestibular system that is not yet fully developed--which is why many puppies seem to outgrow motion sickness caused by car rides as they get older.
The reason is that the following three main factors contributing to motion sickness are elevated in self-driving vehicles:
Keeping yourself cool can do wonders for motion sickness.
Motion sickness is the result of your body sensing a discrepancy between what you see (when travelling, the inside of a vehicle and that you're sitting still) and what you feel (your body's vestibular system, which senses balance from your inner ear, tells your brain that you're moving).
com)-- The Vestibular Disorders Association (VEDA) is aware of concerns by some users of Apple's new iOS 7 Software designed for the company's iPhone and iPad products, who report that the parallax effect may cause some users to experience vestibular symptoms such as motion sickness and dizziness.
According to ABC News, users have also taken to Twitter to vent out their feeling of motion sickness as a result of the transitions.
Several reports say that some fans and journalists that have seen early screenings of the "Lord of the Rings" trilogy prequel; and some fans have reported experiencing motion sickness symptoms including dizziness, headaches and nausea.