Definition of atomic hypothesis in English:

atomic hypothesis


  • The hypothesis that matter consists of minute indivisible particles, the nature of which determines the properties of each substance; specifically the form of this developed from the ideas of John Dalton 1803, according to which all the atoms of a chemical element are identical, and different from those of every other element.


Mid 18th century; earliest use found in William Warburton (1698–1779), bishop of Gloucester and religious controversialist.