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.
But strength training could boost your energy levels. Julia Sullivan, Health, 7 Nov. 2025 Boosts Your Brain, Mood, and Energy Vitamin B12 helps your nervous system function properly, which supports brain health, mood, and energy levels. Jennifer Lefton, Verywell Health, 5 Nov. 2025 The shift to shorter days can negatively affect mood and energy levels, too. Katia Hetter, CNN Money, 3 Nov. 2025 While this energy level is lower than many rifle categories, the slug’s massive frontal area and weight create uniquely destructive terminal effects. Atharva Gosavi, Interesting Engineering, 30 Oct. 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 14 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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