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de Broglie

American  
[duh broh-glee, broh-glee, broi, duh braw-glee] / də broʊˈgli, ˈbroʊ gli, brɔɪ, də brɔˈgli /

noun

  1. Louis Victor 1892–1987, French physicist: Nobel Prize 1929.


de Broglie British  
/ də brɔj /

noun

  1. Prince Louis Victor (lwi viktɔr). 1892–1987, French physicist, noted for his research in quantum mechanics and his development of wave mechanics: Nobel prize for physics 1929

  2. his brother, Maurice (mɔris), Duc de Broglie. 1875–1960, French physicist, noted for his research into X-ray spectra

"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

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.

In visible and near infrared light, that wavelength can be up to a thousand times larger than the de Broglie wavelength used in electronic circuits.

From Science Daily • May 21, 2026

The spacing between atoms in the graphene closely matched the de Broglie wavelength of the positronium at the energies used in the experiment.

From Science Daily • Apr. 28, 2026

One of those is Alexia de Broglie, who created a personal finance education app called Your Juno, for women and non-binary people, after being shocked by how little her female friends understood about finance.

From BBC • Sep. 26, 2022

Compare the de Broglie wavelength to electromagnetic radiation with the same wavelength.

From Textbooks • Aug. 12, 2015

In France, Prince Louis-Victor de Broglie, the scion of a ducal family, found that certain anomalies in the behavior of electrons disappeared when one regarded them as waves.

From "A Short History of Nearly Everything" by Bill Bryson

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