knot theory

noun

: a branch of topology concerned with the properties and classification of mathematical knots
knot theorist noun

Examples of knot theory in a Sentence

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Although the problem’s framing might sound silly, the underlying mechanics have deep connections to group theory, knot theory, graph theory, and other areas of mathematics. Emma R. Hasson, Scientific American, 5 Sep. 2026 The Scottish mathematician, whose research laid the foundation for modern knot theory, was trying to find a way to tell knots apart—a notoriously difficult task. Leila Sloman, Wired News, 8 Nov. 2025 Now, with the additivity conjecture decisively struck down, the knot theory community has a wide world to explore. Leila Sloman, Quanta Magazine, 22 Sep. 2025 See All Example Sentences for knot theory

Word History

First Known Use

1981, in the meaning defined above

Time Traveler
The first known use of knot theory was in 1981

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Cite this Entry

“Knot theory.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/knot%20theory. Accessed 16 Sep. 2026.

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