Definition of daltons:
(n) :
John Dalton, English chemist.
(n) :
(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)
(n) :
A male given name transferred from the surname.
(n) :
A habitational surname from Old English.
(n) :
Any of several places in the north of England and in Scotland:
(n) :
A number of places in the United States: