/ Dictionary / Index S sliding rule: Meaning and Definition of Find definitions for: slid'ing rule' Pronunciation: [key] (formerly) a slide rule. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sliding sliding scale Related Content Daily Word Quiz: feral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language