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.
Your body’s circadian rhythm affects your sleep quality and daytime energy levels. Carrie Madormo, Verywell Health, 26 Feb. 2026 Drinks high in iron made with cocoa, pea protein, prunes, dark leafy greens, and nut butters can help support better energy levels. Carley Millhone, Health, 26 Feb. 2026 Consider your personal circumstances and energy levels, and have a clear plan first. Nomita Vaish-Taylor, The Spruce, 23 Feb. 2026 As this reporter can attest from being on the beach for the day 1 marooning, the energy level for all 24 returning players was sky high. Dalton Ross, Entertainment Weekly, 22 Feb. 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 2 Mar. 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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