space sickness

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space sick·ness

dizziness as result of changes in inner ear resulting from absence of gravity.
Synonym(s): physiologic vertigo

space sickness

n.
Motion sickness caused by sustained weightlessness during space flight, usually accompanied by disturbance of the inner ear.

space′sick′ (spās′sĭk′) adj.

space sickness

The constellation of effects of space travel on human physiology, especially motion sickness; prolonged space flight is associated with osteoporosis, disuse muscle atrophy, growth of 5+ cm in space, related to low gravity, and may be punctuated by inconvenience—e.g., failure of waste management systems

space sickness

Space adaptation syndrome, see there.

space sickness

1. The nausea that people can experience in the low-gravity environment of space.
2. The damage to health from exposure to prolonged low-gravity situations (such as osteoporosis and muscle weakness) or from radiation.