/ Dictionary / Index A accelerometer: Meaning and Definition of Find definitions for: ac•cel•er•om•e•ter Pronunciation: (ak-sel"u-rom'i-tur), [key] — n. an instrument for measuring acceleration, as of aircraft or guided missiles. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: accelerometer (Thesaurus) accelerograph accent Related Content Daily Word Quiz: reclusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language