/ Dictionary / Index H Hartley: Meaning and Definition of Find definitions for: Hart•ley Pronunciation: (härt'lē), [key] — n. 1705–57, English physician and philosopher. 1877–1943, U.S. painter. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hartley (Thesaurus) Harthacnut Hartline Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language