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dalton

1 American  
[dawl-tn] / ˈdɔl tn /

noun

Physics.

  1. atomic mass unit.

Dalton 2 American  
[dawl-tn] / ˈdɔl 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.

Dalton 1 British  
/ ˈdɔːltən /

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

"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
dalton 2 British  
/ ˈdɔːltən /

noun

  1. another name for atomic mass unit

"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
Dalton 1 Scientific  

  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.

dalton 2 Scientific  
/ dôl′tən /

  1. See atomic mass unit

Etymology

Origin of dalton

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“We’re not stagnant,” said Dr. Laura Dalton, Mar Monte’s chief medical operating officer.

From The Wall Street Journal

“We don’t have the same profit-margin expectations as a medspa,” said Dalton.

From The Wall Street Journal

With three-time All-Star catcher Will Smith in front of him, Dalton Rushing’s role is clear: He is the Dodgers’ backup catcher.

From Los Angeles Times

“Dalton’s in a good spot right now,” Roberts said last week.

From Los Angeles Times

The Perth-based side led 17-14 at half-time against Dalton Papali'i's Auckland Blues on Saturday evening.

From Barron's

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.