Dirac
Americannoun
noun
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.
This remarkable effect occurs at a special condition known as the "Dirac point," where graphene sits at a boundary between being a metal and an insulator.
From Science Daily • Apr. 15, 2026
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
A great deal of persistent effort carried us through and eventually led to our measuring a phenomenon even more exciting than a Dirac point: another kind of singularity.
From Scientific American • Jun. 18, 2023
His confidence was based on the recent discovery by Dirac of the equation that governed the electron.
From "A Brief History of Time: And Other Essays" by Stephen Hawking
![]()
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.