from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Motion sickness caused by sustained weightlessness during space flight, usually accompanied by disturbance of the inner ear.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. motion sickness caused by the weightlessness of space flight
from the GNU version of the Collaborative International Dictionary of English
- n. a group of symptoms, prominently nausea, but sometimes including lethargy, headache, and sweating, occuring under the weightless conditions of space flight.
Sorry, no etymologies found.
NASA was growing concerned about the incidence of space sickness and wanted Thagard, a physician, to run some experiments on what was being officially labeled Space Adaptation Syndrome SAS.