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

Meanwhile, other matter is channeled to the poles of the black hole, from where it is blasted away as high-energy plasma jets travelling at near-light speeds. —Robert Lea, Space.com, 14 June 2026

During the tournament, Royal Caribbean will transform all ships fleet-wide into high-energy hubs. —Miami Herald, 12 June 2026

The actress, 62, says Mickey was always high-energy and valued his active lifestyle. —Vanessa Etienne, PEOPLE, 11 June 2026

Orlando Senna, a high-energy, tireless and charming Brazilian filmmaker, playwright, writer and cultural activist, died June 9 from pneumonia in Rio de Janeiro. —John Hopewell, Variety, 11 June 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