high-energy

adjective

high-en·​er·​gy ˈhī-ˈe-nər-jē How to pronounce high-energy (audio)
1
a
: having such speed and kinetic energy as to exhibit relativistic departure from classical laws of motion
used especially of elementary particles whose velocity has been imparted by an accelerator
b
: of or relating to high-energy particles
2
: yielding a relatively large amount of energy when undergoing hydrolysis

Examples of high-energy in a Sentence

Recent Examples on the Web
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West African Dance Troupe returns to JCAL to celebrate Black History Month by honoring ancestral traditions through contemporary performance and keeping the high-energy genre front and center as a vital, living expression of culture. Karu F. Daniels, New York Daily News, 26 Feb. 2026 The high-energy space has a fun and youthful vibe, but the hubbub and music that leaks from it into the open-plan restaurants surrounding the Piazza can spoil their ambience. Condé Nast, Condé Nast Traveler, 25 Feb. 2026 At this exclusive, high-energy event, the world’s most innovative leaders will convene to explore how AI, humanity, and strategy converge to redefine, again, the future of work. Glenn Gamboa, Fortune, 24 Feb. 2026 Engineers at Horse Powertrain also decided to tweak the gearbox for better energy improvement and added a high-energy ignition system. Ameya Paleja, Interesting Engineering, 24 Feb. 2026 See All Example Sentences for high-energy

Word History

First Known Use

1934, in the meaning defined at sense 1a

Time Traveler
The first known use of high-energy was in 1934

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Cite this Entry

“High-energy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/high-energy. Accessed 5 Mar. 2026.

Medical Definition

high-energy

adjective
: yielding a relatively large amount of energy when undergoing hydrolysis
high-energy phosphate bonds in ATP
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