/ Dictionary / Index J Jenner: Meaning and Definition of Find definitions for: Jen•ner Pronunciation: ( jen'ur), [key] — n. 1749–1823, English physician: discoverer of smallpox vaccine. 1815–98, English physician and pathologist. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: jenner (Thesaurus) Jenkinson jennet Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language