Breadcrumb Home > Dictionary > Index E empirical formula: Meaning and Definition of Find definitions for: empir'ical for'mula Pronunciation: [key] — Chem. Chem. a chemical formula indicating the elements of a compound and their relative proportions, as (CHO). Cf. molecular formula, structural formula. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. empirical empiricism ✖ Related Content Daily Word Quiz: deracinate Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language