/ Dictionary / Index S seasick: Meaning and Definition of Find definitions for: sea•sick Pronunciation: (sē'sik"), [key] — adj. afflicted with seasickness. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: seasick (Thesaurus) Seashore test seasickness Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language