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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Nima Arkani-Hamed of the Institute for Advanced Study has spent more than a decade developing a new mathematical language for describing quantum physics that doesn’t directly refer to space, time, or quantum mechanics. Charlie Wood, WIRED, 3 Nov. 2024 Its sweeping plan extends in scope from exploring the moon, Mars, and deep space, and probes topics like the origins of the universe, quantum mechanics, habitable planets, and extraterrestrial life. Ann Scott Tyson, The Christian Science Monitor, 30 Oct. 2024 This new paradigm of financial technology requires a bold interdisciplinary approach, drawing on breakthroughs in quantum mechanics, general relativity, AI and cosmology. Eric Solis, Forbes, 23 Oct. 2024 Instead quantum mechanics allows a particle’s residence to extend to the right-hand region of the cylinder, even if a residence in the left-hand region seems logically compelling. Manon Bischoff, Scientific American, 9 Sep. 2024 See all Example Sentences for quantum mechanics 

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 24 Nov. 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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!