Meaning of motion sickness

mo'tion sick"ness

Pronunciation: [key]
  1. a feeling of nausea and dizziness, sometimes accompanied by vomiting, resulting from stimulation by motion of the semicircular canals of the ear during travel by car, plane, etc.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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