/ Dictionary / Index M molecular formula: Meaning and Definition of Find definitions for: molec'ular for'mula Pronunciation: [key] a chemical formula that indicates the kinds of atoms and the number of each kind in a molecule of a compound. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. molecular film molecular genetics Related Content Daily Word Quiz: hale Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language