/ Dictionary / Index E elementary process: Meaning and Definition of Find definitions for: el'emen'tary proc'ess Pronunciation: [key] — Physical Chem. Physical Chem. a chemical process complete in one step, characterized by the simultaneous interaction of all the atoms of two or more molecules. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. elementary particle elementary school 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