high-energy

adjective

high-en·​er·​gy ˈhī-ˈe-nər-jē 

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

However, such extreme growth is usually expected to suppress high-energy radiation and weaken jet activity. —Georgina Jedikovska, Interesting Engineering, 23 Jan. 2026

The high-energy rookie also used a strong cut to the basket to score off a Celtics inbounds pass. —Zack Cox, Boston Herald, 22 Jan. 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. —Fabiola Sánchez, Fortune, 22 Jan. 2026

Listen to live music late into the night at Tin Roof, a casual, high-energy spot known for nightly shows and a lively crowd. —Lauren Dana Ellman, Travel + Leisure, 21 Jan. 2026

Word History

First Known Use

1934, in the meaning defined at sense 1a

Rhymes for high-energy

• bioenergy
• energy

Medical Definition

high-energy

adjective

: yielding a relatively large amount of energy when undergoing hydrolysis

high-energy phosphate bonds in ATP