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.
Supplementing and restoring proper levels can reduce fatigue and improve energy levels and concentration. Jessica Swirble, Verywell Health, 19 June 2026 Bipolar disorder is a manic-depressive illness of the brain that causes extreme changes in mood and energy levels, according to the National Institute of Mental Health. Vanessa Etienne, PEOPLE, 17 June 2026 Encouragingly, his energy levels late in the game were still good enough to get into that goalscoring position. Andy Jones, New York Times, 16 June 2026 Others place greater importance on independence, energy levels or minimizing side effects. Lauryn Higgins, Flow Space, 15 June 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 25 Jun. 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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