/ Dictionary / Index S scouring rush: Meaning and Definition of Find definitions for: scour'ing rush" Pronunciation: [key] any of certain horsetails, esp. Equisetum hyemale, used for scouring and polishing. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. scouring pad scourings Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language