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high-energy physics

American  
[hahy-en-er-jee] / ˈhaɪˈɛn ər dʒi /

noun

  1. the branch of particle physics that deals with the collisions of particles accelerated to such high energies that new elementary particles are created by the collisions.


high-energy physics British  

noun

  1. another name for particle physics

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of high-energy physics

First recorded in 1960–65

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

He opted for high-energy physics and theoretical math instead.

From The Wall Street Journal May 15, 2026

"As a rule, experiments in high-energy physics have different designs even if they have the same science goal. Joint analyses allow us to use complementary features of these designs."

From Science Daily Oct. 30, 2025

Gary Marcus has argued for ‘‘a coordinated, multidisciplinary, multinational effort’’ modeled after the European high-energy physics lab CERN, which has successfully developed billion-dollar science projects like the Large Hadron Collider.

From New York Times Apr. 15, 2022

Fusion energy sciences and high-energy physics get only $1 million more than they received this year, some $671 million and $1.046 billion, respectively, whereas the budget for nuclear physics is flat, at $713 million.

From Science Magazine Dec. 22, 2020

Nor could dispensers of government patronage merely weigh scientific projects against one another: the cost of high-energy physics had become so great that broader priorities were implicated.

From "Big Science" by Michael Hiltzik

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