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.
The effects of vitamin D deficiency vary with age and impact bone development, bone strength, the immune system, muscle health, energy levels, and other aspects of health. Heidi Moawad, Verywell Health, 31 July 2025 Think energy levels, family responsibilities, burnout signs, health shifts, or market trends. Lien De Pau, Forbes.com, 25 July 2025 Their energy levels are extremely low, nothing like before. Ivana Kottasová, CNN Money, 25 July 2025 Choose a dog that’s suited to your home, energy level, lifestyle and work schedule. Lisa Bloch, Mercury News, 22 July 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 6 Aug. 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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