/ Dictionary / Index S subring: Meaning and Definition of Find definitions for: sub•ring Pronunciation: (sub'ring"), [key] — n. Math. a subset of a ring that is a subgroup under addition and that is closed under multiplication. Cf. (def. 22). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. subright Subroc Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language