/ Dictionary / Index M moment of sail: Meaning and Definition of Find definitions for: mo'ment of sail' Pronunciation: [key] the product of a given area of sail, taken as the maximum safe area, and the vertical distance from the center of effort and the center of lateral resistance. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. moment of momentum moment of truth Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language