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.
Choose whole foods, lean proteins, and complex carbohydrates to maintain stable energy levels. Bryan Robinson, Forbes.com, 16 Sep. 2025 Influencers claim that the non-alcoholic concoction can help reduce stress, improve energy levels and shed excess pounds. Amy McGorry, FOXNews.com, 14 Sep. 2025 Skip sugary snacks at night to prevent spiking blood sugar and energy levels. Cristina Mutchler, Verywell Health, 10 Sep. 2025 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 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 18 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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