energy level

noun

: one of the stable states of constant energy that may be assumed by a physical system
used especially of the quantum states of electrons in atoms and of nuclei

called also energy state

Examples of energy level in a Sentence

Recent Examples on the Web
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Each ion’s outer electrons can take on eight different energy levels; five were chosen to represent the quantum digits. Shalma Wegsman, Quanta Magazine, 5 Sep. 2025 The experimental microbeads, meanwhile, appeared to curb fat and weight gain without disrupting blood sugar, digestion or energy levels. Deirdre Bardolf, FOXNews.com, 3 Sep. 2025 With lots of hefty dialogue and basically one indoor location, Ozon’s movie loses some momentum during those theatrical closing reels, although the performances help to keep the energy level high. Jordan Mintzer, HollywoodReporter, 2 Sep. 2025 Their Rebalance & Energize program, for example, is designed to relieve stress and revitalize the body at the cellular level, offering deep recovery and improved energy levels. Michelle Stansbury, Forbes.com, 2 Sep. 2025 See All Example Sentences for energy level

Word History

First Known Use

1902, in the meaning defined above

Time Traveler
The first known use of energy level was in 1902

Cite this Entry

“Energy level.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/energy%20level. Accessed 10 Sep. 2025.

Kids Definition

energy level

noun
: one of the stable states of constant energy that may be assumed by a physical system
used especially of the states of electrons in atoms

More from Merriam-Webster on energy level

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