string theory

noun

Definition of string theory

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

Examples of string theory in a Sentence

Recent Examples on the Web In string theory, a space-time is generally assumed—the very assumption that quantum gravity aims to explain. Conor Purcell, Ars Technica, "Can we craft a theory in which space and time aren’t assumed to exist?," 20 Apr. 2020 Experimentation in real life based on string theory is still pretty new, with much to discover. Caroline Delbert, Popular Mechanics, "NASA Experiment Weakens String Theory, but Doesn't Disprove It," 23 Mar. 2020 Could some observations from a faraway galaxy add up to a refutation of string theory? Caroline Delbert, Popular Mechanics, "NASA Experiment Weakens String Theory, but Doesn't Disprove It," 23 Mar. 2020 Many physicists consider string theory our best hope for combining quantum physics and gravity into a unified theory of everything. Brendan Z. Foster, Scientific American, "Will String Theory Finally Be Put to the Experimental Test?," 25 Mar. 2020 The good news is that string theory has no free parameters. Quanta Magazine, "There Are No Laws of Physics. There’s Only the Landscape.," 4 June 2018 Does this conjecture really amount to a test of string theory? Brendan Z. Foster, Scientific American, "Will String Theory Finally Be Put to the Experimental Test?," 25 Mar. 2020 Frustrated with Forky’s constant questions, Buttercup does a speed round of answers, explaining everything from blocks to rock’n’roll to string theory. Maureen Lee Lenker, EW.com, "All of the questions Forky has asked on Forky Asks a Question," 10 Jan. 2020 That is where the work of Dr. Gubser and others has come in, with its focus on string theory. Dylan Loeb Mcclain, New York Times, "Steven Gubser, a Bright Star in the Physics Universe, Dies at 47," 6 Sep. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'string theory.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of string theory

1973, in the meaning defined above

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The first known use of string theory was in 1973

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Last Updated

10 May 2020

Cite this Entry

“String theory.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/string%20theory. Accessed 25 May. 2020.

More from Merriam-Webster on string theory

Britannica.com: Encyclopedia article about string theory

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