/ Dictionary / Index C caliper rule: Meaning and Definition of Find definitions for: cal'iper rule" Pronunciation: [key] a caliper with one jaw fixed to or integral with a graduated straight bar on which the other jaw slides. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. caliper caliph Related Content Daily Word Quiz: digression Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language