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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Some say this combination mimics the effects of pre-workout supplements, which are meant to enhance physical performance and energy levels when exercising. Angelica Stabile, FOXNews.com, 29 Sep. 2025 When digestion slows, energy levels can be negatively impacted as nutrients are not absorbed by the body as quickly. Cristina Mutchler, Verywell Health, 29 Sep. 2025 Your milk choice can also impact your energy level. Ashia Aubourg, Outside, 26 Sep. 2025 Going this route also encourages more stable blood sugar, which contributes greatly to sustaining energy levels all day long. Audrey Bruno, SELF, 25 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 1 Oct. 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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