Dictionary

dalton

noun dal·ton \ˈdl-tən\

Definition of DALTON

:  atomic mass unit —used chiefly in biochemistry

Origin of DALTON

John Dalton †1844 English chemist
First Known Use: circa 1928

Rhymes with DALTON

Dalton

biographical name Dal·ton \ˈdl-tən\

Definition of DALTON

John 1766–1844 Eng. chem. & physicist

Dalton

geographical name Dal·ton \ˈdl-tən\

Definition of DALTON

city NW Georgia pop 33,128

dalton

noun dal·ton \ˈdlt-ən\   (Medical Dictionary)

Medical Definition of DALTON

:  a unit of mass for expressing masses of atoms, molecules, or nuclear particles equal to 112 of the atomic mass of the most abundant carbon isotope 12:  atomic mass unit—used chiefly in biochemistry; abbreviation died

Biographical Note for DALTON

Dalton, John (1766–1844), British chemist and physicist. One of the fathers of modern physical science, Dalton formulated the atomic theory of matter, a theory that established chemistry as a true science. He determined the relative weights of atoms and developed the laws of definite and multiple proportions. He formulated several laws relating to gases, including Dalton's law or the law of partial pressures. His wide interests included meteorology, in which he made valuable observations on the aurora borealis, trade winds, and rain. In 1794 he systematically described and explained the form of color blindness known as Daltonism. He himself was color-blind.

Browse

Next Word in the Dictionary: DaltonianPrevious Word in the Dictionary: dal segnoAll Words Near: dalton
May 22, 2015
nepotism Hear it
favoritism based on kinship
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears