[ see-sik-nis ]
/ ˈsiˌsɪk nɪs /


nausea and dizziness, sometimes accompanied by vomiting, resulting from the rocking or swaying motion of a vessel in which one is traveling at sea.

Origin of seasickness

First recorded in 1615–25; sea + sickness Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for seasickness

Medicine definitions for seasickness


[ sēsĭk′nĭs ]


Motion sickness resulting from the pitching and rolling of a ship or boat in water, especially at sea.mal de mer

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.