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dalton

[dawl-tn]
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noun Physics.
  1. atomic mass unit.
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Origin of dalton

First recorded in 1935–40; named after J. Dalton

Dalton

[dawl-tn]
noun
  1. John,1766–1844, English chemist and physicist.
  2. Robert,1867–92, U.S. outlaw in the West.
  3. a city in NW Georgia.
  4. a male given name.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for dalton

dalton

noun
  1. another name for atomic mass unit
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Word Origin

C20: named after John Dalton

Dalton

noun
  1. John. 1766–1844, English chemist and physicist, who formulated the modern form of the atomic theory and the law of partial pressures for gases. He also gave the first accurate description of colour blindness, from which he suffered
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for dalton

Dalton

in reference to a system of school education designed by Helen Parkhurst, 1920, from Dalton, Massachusetts, U.S., where it was first adopted. For Daltonism see color blindness.

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Online Etymology Dictionary, © 2010 Douglas Harper

dalton in Medicine

dalton

(dôltən)
n.
  1. atomic mass unit

dalton in Science

dalton

[dôltən]

Dalton

  1. British chemist whose pioneering work on the properties of the atmosphere and gases led him to formulate the atomic theory. Dalton's theory stipulates that all matter is made up of combinations of atoms, the atoms of each element being identical. These atoms can be neither created nor destroyed, but chemical reactions take place through their rearrangement.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.