/ Dictionary / Index S subquarter: Meaning and Definition of Find definitions for: sub•quar•ter Pronunciation: (sub'kwôr"tur, -kwô"-), [key] — n. Heraldry. one of the quarterings of a grand quarter. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. subpurlin subquarterly Related Content Daily Word Quiz: winsome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language