/ Dictionary / Index S seatrain: Meaning and Definition of Find definitions for: sea•train Pronunciation: (sē'trān"), [key] — n. a ship for the transportation of loaded railroad cars. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. seat-of-the-pants sea trials Related Content Daily Word Quiz: crutiny Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language