/ Dictionary / Index C calculating machine: Meaning and Definition of Find definitions for: cal'culating machine" Pronunciation: [key] calculator (def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. calculating calculation Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language