/ Dictionary / Index A Aston: Meaning and Definition of Find definitions for: As•ton Pronunciation: (as'tun), [key] 1877–1945, English physicist and chemist: Nobel prize for chemistry 1922. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. astomatous Aston dark space Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language