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

Hudler’s high-energy persona creates a sharp split amongst graders. — Pete Grathoff, Kansas City Star, 25 Aug. 2026

Their version is celebrated as a high-energy rock version of the classic. — Caché McClay, USA Today, 25 Aug. 2026

Different perspective Matthew is typically a high-energy, effervescent and extroverted kid. — Angie Leventis Lourgos, Chicago Tribune, 22 Aug. 2026

Previous research found these lifeforms are resistant to vacuum, cold and high-energy particles. — Charles Q. Choi, Space.com, 20 Aug. 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