/ Dictionary / Index E empirical: Meaning and Definition of Find definitions for: em•pir•i•cal Pronunciation: (em-pir'i-kul), [key] — adj. derived from or guided by experience or experiment. depending upon experience or observation alone, without using scientific method or theory, esp. as in medicine. provable or verifiable by experience or experiment. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: empirical (Thesaurus) empiric empirical formula Related Content Daily Word Quiz: innocuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language