/ Dictionary / Index D dalton: Meaning and Definition of Find definitions for: dal•ton Pronunciation: (dôl'tn), [key] — n. Physics. See Dal•ton Pronunciation: (dôl'tn), [key] — n. 1766–1844, English chemist and physicist. 1867–92, U.S. outlaw in the West. a city in NW Georgia. 20,743. a male given name. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: dalton (Thesaurus) dal segno Daltonian Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language