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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
This year’s edition featured dancers from Sunset Blvd., the musical revival in which Scherzinger stars, and a high-energy appearance from the pop star herself. Jessica Lynch, Billboard, 23 June 2025 Al-Hilal will rely on their defensive organization and swift counterattacks, while Salzburg's high-energy pressing and youthful firepower will look to push the pace and pin their opponents back. Kilty Cleary, MSNBC Newsweek, 22 June 2025 The Sun played some of their best defense of the season in the first quarter, powered by a high-energy start from rookie Saniya Rivers. Emily Adams, Hartford Courant, 21 June 2025 Expect fierce competition, high-energy moves and oh-so-many rhinestones as performers bring this vibrant 1970s dance style to life. Muri Assunção, New York Daily News, 21 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

Browse Nearby Words

Cite this Entry

“High-energy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/high-energy. Accessed 28 Jun. 2025.

Medical Definition

high-energy

adjective
: yielding a relatively large amount of energy when undergoing hydrolysis
high-energy phosphate bonds in ATP
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!