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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This is especially critical given the proliferation of EVs and high-energy AI applications. Expert Panel®, Forbes.com, 9 June 2025 Wow and the boy band B2K also appeared in the high-energy greeting. Thania Garcia, Variety, 9 June 2025 And that’s evident with his role as Oliver Putnam, a lovable, whimsical and high-energy Broadway director, in Only Murders in the Building (currently filming its fifth season). Carly Thomas, HollywoodReporter, 6 June 2025 The culminating 1950s dance in the school gym gets into high-energy flapping hoop skirt territory. Christopher Arnott, Hartford Courant, 6 June 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 18 Jun. 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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