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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.
Energy drinks are designed to boost energy levels via caffeine and other stimulants, such as glucose. Laura Dorwart, Verywell Health, 25 Nov. 2025 With low energy levels and breathing challenges due to their brachycephalic structure, English bulldogs tend to tire easily. Liz O'Connell, MSNBC Newsweek, 25 Nov. 2025 Research shows that proper hydration supports cognitive function and energy levels, and plays an essential role in digestion. Dana Santas, CNN Money, 24 Nov. 2025 Watch for changes in energy levels. Christina Manian, Health, 21 Nov. 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 26 Nov. 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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