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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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 That became my project for a few years: sitting alone in a chair and reading about genome sequencing, magnetic fields, the geometry of sand dunes, string theory. Literary Hub, 18 June 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 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 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

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Cite this Entry

“String theory.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/string%20theory. Accessed 24 Jun. 2026.

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