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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The team’s fitness has stood out, a factor in its ability to maintain a high-energy style and score twice a match. Tom Krasovic, San Diego Union-Tribune, 17 May 2025 The Eurovision Song Contest 2025 will culminate with its Grand Final on Saturday, bringing together 37 countries for an evening of high-energy performances, glitzy staging and international pop flair. Tahar Rajab, MSNBC Newsweek, 17 May 2025 The release strategy aims to showcase the film’s high-energy action sequences and cultural importance. Naman Ramachandran, Variety, 17 May 2025 All planets with atmospheres in the Solar System experience auroras, created by the interaction of magnetic fields with high-energy particles from the sun. Doyle Rice, USA Today, 15 May 2025 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 25 May. 2025.

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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