/ Dictionary / Index E empiricism: Meaning and Definition of Find definitions for: em•pir•i•cism Pronunciation: (em-pir'u-siz"um), [key] — n. empirical method or practice. the doctrine that all knowledge is derived from sense experience. Cf. rationalism (def. 2). undue reliance upon experience, as in medicine; quackery. an empirical conclusion. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: empiricism (Thesaurus) empirical formula Empirin Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language