high-energy
UK: ˌhaɪ ˈen.ə.dʒi | US: ˌhaɪ ˈen.ɚ.dʒi
adj. characterized by great vigor, intensity, or activity
adj. (physics) relating to particles or radiation with high kinetic energy
The compound "high-energy" combines "high" (Old English hēah, meaning "elevated" or "intense") with "energy" (from Greek energeia, via Latin energia, meaning "activity" or "force"). The term emerged in the 19th century, initially describing intense physical or mental activity. By the 20th century, it was adopted in physics to denote particles or radiation with exceptionally high kinetic energy, reflecting the literal elevation of energy levels. The word's dual usage bridges everyday vigor and scientific precision.
The high-energy performance left the audience exhilarated.
Scientists study high-energy particles in particle accelerators.
Children often have high-energy behavior after consuming sugary snacks.
The startup culture thrives on high-energy teamwork and innovation.
High-energy gamma rays are emitted during nuclear reactions.