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noun, Pathology.
a complex of symptoms including nausea, lethargy, headache, and sweating, occurring among astronauts under conditions of weightlessness.
space sickness
the nausea that people can experience in the gravity-free environment of space

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.


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