/ Dictionary / Index P Pasteur: Meaning and Definition of Find definitions for: Pas•teur Pronunciation: (pa-stûr' Fr. pä-stœr'), [key] 1822–95, French chemist and bacteriologist. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: pasteur (Thesaurus) paste-up Pasteur effect Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language