/ Dictionary / Index S seicento: Meaning and Definition of Find definitions for: sei•cen•to Pronunciation: (sā-chen'tōIt.se-chen'tô), [key] — n. the 17th century, with reference to the Italian art or literature of that period. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sei seiche Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language