/ Dictionary / Index M mother-of-thousands: Meaning and Definition of Find definitions for: moth•er-of-thou•sands Pronunciation: (mu'ur-uv-thou'zundz), [key] — pl. -sands. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: mother-of-thousands (Thesaurus) mother-of-pearl glass mother-of-thyme Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language