/ Dictionary / Index W Weller: Meaning and Definition of Find definitions for: Wel•ler Pronunciation: (wel'ur), [key] born 1915, U.S. physician: Nobel prize for medicine 1954. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: weller (Thesaurus) well-dressing Welles Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language