particle physics

noun

: a branch of physics dealing with the constitution, properties, and interactions of elementary particles especially as revealed in experiments using particle accelerators

called also high-energy physics

particle physicist noun

Examples of particle physics in a Sentence

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Clearly, further progress toward the truth remains possible in particle physics. Quanta Magazine, 26 Jan. 2026 This mystery has sparked a search for candidate particles for dark matter beyond the standard model of particle physics. Robert Lea, Space.com, 21 Jan. 2026 The achievement has direct applications in fields including particle physics, material science, and data transmission. Prabhat Ranjan Mishra, Interesting Engineering, 25 Dec. 2025 That got me into particle physics for a while. Adam Frank, Big Think, 25 Sep. 2025 See All Example Sentences for particle physics

Word History

First Known Use

1946, in the meaning defined above

Time Traveler
The first known use of particle physics was in 1946

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Cite this Entry

“Particle physics.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/particle%20physics. Accessed 29 Jan. 2026.

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