wave-particle duality
Americannoun
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The exhibition of both wavelike and particlelike properties by a single entity. For example, electrons undergo diffraction and can interfere with each other as waves, but they also act as pointlike masses and electric charges. The theory of quantum mechanics is a attempt to explain these apparently contradictory properties exhibited by matter.
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See also complementarity
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.
Despite the uncertainty about its interpretation, wave-particle duality lies at the core of quantum mechanics.
From Science Daily ● Mar. 10, 2026
You don’t need a master’s in wave-particle duality to enjoy the cosmic playground of coincidence and fate that Kröger has in mind.
From Los Angeles Times ● Oct. 11, 2024
The wave-particle duality reveals the queer, nonbinary nature of quantum mechanics.
From Salon ● Apr. 20, 2021
These probabilistic limits on measurement are described by Heisenberg’s uncertainty principle, which connects wave-particle duality to the non-absolute properties of space and time.
From Textbooks ● Aug. 12, 2015
One was the so- called wave-particle duality of nature at the infinitesimal scale: experiments sometimes showed light and electrons behaving like particles, and other times as waves.
From "Big Science" by Michael Hiltzik
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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.