/ Dictionary / Index B Bergius process: Meaning and Definition of Find definitions for: Ber'gius proc"ess Pronunciation: [key] — Chem. Chem. a method of hydrogenation formerly used with coal to produce an oil similar to petroleum. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Bergius Bergman Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language