/ Dictionary / Index B barometric error: Meaning and Definition of Find definitions for: bar'omet'ric er'ror Pronunciation: [key] — Horol. Horol. error of a timepiece due to the fluctuations in density of the atmosphere through which the balance or pendulum moves. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. barometer barometric gradient Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language