/ Dictionary / Index A acceleration coefficient: Meaning and Definition of Find definitions for: accelera'tion coeffi"cient Pronunciation: [key] — Econ. Econ. the ratio of change in capital investment to the change in consumer spending. Also calledCf. acceleration principle. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. acceleration clause accelerationist Related Content Daily Word Quiz: tranquil Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language