/ Dictionary / Index A Atherton: Meaning and Definition of Find definitions for: Ath•er•ton Pronunciation: (ath'ur-tun), [key] — n. (Gertrude Franklin Horn), 1857–1948, U.S. novelist. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. atherosclerosis athetosis 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