/ Dictionary / Index A accelerationist: Meaning and Definition of Find definitions for: ac•cel•er•a•tion•ist Pronunciation: (ak-sel"u-rā'shu-nist), [key] — n. Econ. a person, esp. an economist, who advocates or promotes the acceleration principle. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. acceleration coefficient acceleration of gravity Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language