A habitational surname from Old English. / John Dalton, English chemist. / A male given name transferred from the surname. / A hamlet in Burton-in-Kendal parish, Cumbria, England (OS grid ref SD5476).

(medicine, pathology) Inability or defective ability to perceive or distinguish certain colors, especially red-green color blindness. / Achromatopsia.

(chemistry) a former unit of atomic mass equivalent to 1/16 the mass of an oxygen atom; now replaced by the atomic mass unit (or dalton)

(physics) the atomic mass unit

plural of dalton

Alternative letter-case form of Daltonism

plural of Dalton

Suffering from Daltonism; colour blind, especially red-green colour blind.

Of or pertaining to the chemist John Dalton, Daltonian. / Colour blind, especially red-green colour blind.

A town in Dalton (Town) with Newton parish, Barrow-in-Furness borough, Cumbria, England (OS grid ref SD2374).