quantum mechanics

noun

plural in form but singular or plural in construction
: a theory of matter that is based on the concept of the possession of wave properties by elementary particles, that affords a mathematical interpretation of the structure and interactions of matter on the basis of these properties, and that incorporates within it quantum theory and the uncertainty principle

called also wave mechanics

quantum mechanical adjective
quantum mechanically adverb

Examples of quantum mechanics in a Sentence

Recent Examples on the Web Basically, there’s Albert Einstein’s theory of general relativity (which made a tiny but far-reaching correction to Isaac Newton’s concept of gravity), and there’s quantum mechanics. Rivka Galchen, The New Yorker, 30 Mar. 2024 What became clear to me really quickly was that there’s no point in me wasting time trying to understand quantum mechanics. Bilge Ebiri, Vulture, 10 Mar. 2024 Her formula is complicated, but Sarnak hails it as an important new kind of function, comparable to the Airy functions that define solutions to differential equations used in a variety of contexts in physics, ranging from optics to quantum mechanics. Lyndie Chiou, Quanta Magazine, 5 Mar. 2024 Here are a few trends to follow: Quantum AI Quantum AI, harnessing the tenets of quantum mechanics, signifies a substantial advancement beyond the confines of classical computing. Sunny Pokala, Forbes, 21 Feb. 2024 Although the science of memory and the brain comes across as well researched and intriguing, the realm of quantum mechanics remains a cosmological question mark. Amy Brady, Scientific American, 14 Dec. 2023 But modern mechanics – the physics of light, atoms, quantum mechanics and curved space-time – changed this concept of force. Larry M. Silverberg, Discover Magazine, 8 Dec. 2023 The scenario proposes an as-yet-unseen dimension that lives within the already complex realm of string theory, which attempts to unify quantum mechanics and Einstein’s theory of gravity. Steve Nadis, Quanta Magazine, 1 Feb. 2024 Suddenly the domains of the very small (quantum mechanics) and the very large (relativity) overlap. Adam Frank, Discover Magazine, 12 July 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'quantum mechanics.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1922, in the meaning defined above

Time Traveler
The first known use of quantum mechanics was in 1922

Dictionary Entries Near quantum mechanics

Cite this Entry

“Quantum mechanics.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quantum%20mechanics. Accessed 19 Apr. 2024.

Medical Definition

quantum mechanics

noun, plural in form but singular or plural in construction
: a theory of matter that is based on the concept of the possession of wave properties by elementary particles, that affords a mathematical interpretation of the structure and interactions of matter on the basis of these properties, and that incorporates within it quantum theory and the uncertainty principle

called also wave mechanics

quantum mechanical adjective
quantum mechanically adverb

More from Merriam-Webster on quantum mechanics

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