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Dirac

American  
[dih-rak] / dɪˈræk /

noun

  1. Paul Adrien Maurice, 1902–84, British physicist, in the U.S. after 1971: Nobel Prize 1933.


Dirac British  
/ dɪˈræk /

noun

  1. Paul Adrien Maurice. 1902–84, English physicist, noted for his work on the application of relativity to quantum mechanics and his prediction of electron spin and the positron: shared the Nobel prize for physics 1933

"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

Dirac Scientific  
/ dĭ-răk /
  1. British mathematician and physicist who developed a mathematical interpretation of quantum mechanics with which he was able to provide the first correct description of electron behavior. For this work Dirac shared with Erwin Schrödinger the 1933 Nobel Prize for physics.


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.

One was "matrix mechanics," developed by Werner Heisenberg and later expanded by Max Born, Paul Dirac, and others.

From Science Daily • Mar. 10, 2026

Many land owners now are battling fast-spreading eastern red cedar and juniper trees that are contributing to the grassland ecosystem collapse, says Dirac Twidwell, a rangeland ecologist at the University of Nebraska.

From Seattle Times • Aug. 25, 2023

To move our BEC on this graph toward the Dirac point, we need to change its momentum—in other words, we must actually move it in physical space.

From Scientific American • Jun. 18, 2023

Before we embarked on our experiment, a related project with artificial crystals in Germany showed what happens when a BEC moves in a circular path around a Dirac point.

From Scientific American • Jun. 18, 2023

This approach led Heisenberg, Erwin Schrodinger, and Paul Dirac in the 1920s to reformulate mechanics into a new theory called quantum mechanics, based on the uncertainty principle.

From "A Brief History of Time: And Other Essays" by Stephen Hawking