/ Dictionary / Index L lateen sail: Meaning and Definition of Find definitions for: lateen' sail" Pronunciation: [key] a triangular sail set on a long sloping yard, used esp. on the Mediterranean Sea. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lateen-rigged Late Greek Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language