noun - Seasickness is a form of motion sickness characterized by a feeling of nausea and, in extreme cases, vertigo, experienced after spending time on a craft on water or while swimming in an open body of water especially if sea water is swallowed.
This condition can be caused by the rocking motion of a boat on an open body of water. Seasickness can be treated using a number of drugs, including scopolamine. Over-the-counter and prescription medications (e.g., transdermal patches and tablets) are also readily available.
- 1560–70; sea + sick