field theory

noun

Definition of field theory

: any theory in physics consisting of a detailed mathematical description of the assumed physical properties of a region under some influence (such as gravitation)

Examples of field theory in a Sentence

Recent Examples on the Web Fischler called him the father of effective field theory. BostonGlobe.com, 27 July 2021 Polyakov’s Liouville field theory is one such example. Charlie Wood, Wired, 4 July 2021 Polyakov’s Liouville field theory is one such example. Charlie Wood, Wired, 4 July 2021 Polyakov’s Liouville field theory is one such example. Charlie Wood, Wired, 4 July 2021 Polyakov’s Liouville field theory is one such example. Quanta Magazine, 17 June 2021 Conformal field theory, geometric entities, before and after that exist only in the head—and, in this despotic head, a big muddle and great confusion. Claudio Magris, Harper's Magazine, 25 May 2021 Kaku, a physicist at the City University of New York and a leading proponent of string field theory, traces the effort to merge relativity and quantum theory, uniting the laws that govern the very large and the very small. New York Times, 6 Apr. 2021 Keynote speakers at the annual Celebration event have included astronauts Buzz Aldrin and Dr. Bernard Harris Jr. and quantum physicist Dr. Michio Kaku, who co-authored the first academic papers about string field theory. Anchorage Daily News, 24 Dec. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'field 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 field theory

1922, in the meaning defined above

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Time Traveler for field theory

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The first known use of field theory was in 1922

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Dictionary Entries Near field theory

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Last Updated

2 Aug 2021

Cite this Entry

“Field theory.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/field%20theory. Accessed 4 Aug. 2021.

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More from Merriam-Webster on field theory

Britannica.com: Encyclopedia article about field theory

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