string theory

noun

: a theory in physics: all elementary particles are manifestations of the vibrations of one-dimensional strings

Examples of string theory in a Sentence

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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.
For instance, string theory can help scientists predict the results of very high-energy experiments in our own universe. — Zachary Slepian, The Conversation, 30 Mar. 2026 Ongoing work in string theory — the idea that our universe, at its smallest, most fundamental level, is made up of vibrating strings — suggests a way these concepts might be connected. — Quanta Magazine, 22 June 2026 Unlike asymptotic freedom, however, heterotic string theory (and string theory in general) has yet to be validated by experiments. — Lee Billings, Scientific American, 28 Apr. 2026 And string theory was the leading candidate for uniting physics’ two brilliant but mutually incompatible frameworks, relativity and quantum mechanics, although just 19% backed it. — Tom Chivers, semafor.com, 13 May 2026 See All Example Sentences for string theory

Word History

First Known Use

1973, in the meaning defined above

Time Traveler
The first known use of string theory was in 1973

Rhymes for string theory

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Browse Nearby Words

stringsman
string theory
string tie
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Cite this Entry

“String theory.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/string%20theory. Accessed 7 Jul. 2026.

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More from Merriam-Webster on string theory

Britannica.com: Encyclopedia article about string theory

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