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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Scientists say taking brief moments to decompress during the workday and after can improve mood, sharpen focus and boost energy levels. ABC News, 8 Apr. 2026 Protein promotes satiety, supports muscle recovery, and helps steady energy levels, while collagen may support skin elasticity and joint health. Morgan Pearson, Verywell Health, 7 Apr. 2026 To evaluate detector performance, the researchers first measured the incoming microwave signal by monitoring changes in the device’s energy levels. Ameya Paleja, Interesting Engineering, 3 Apr. 2026 This can lead to steadier energy levels throughout the day. Lindsey Desoto, Health, 1 Apr. 2026 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 15 Apr. 2026.

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

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