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
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Others place greater importance on independence, energy levels or minimizing side effects. Lauryn Higgins, Flow Space, 15 June 2026 The calorie deficit also might cause irritability, headaches or low energy levels. Bestreviews, Mercury News, 15 June 2026 The researchers searched for ultralight dark matter, a hypothetical form of matter that could subtly alter the energy levels inside atomic nuclei. Rupendra Brahambhatt, Interesting Engineering, 13 June 2026 Hormonal changes can affect body composition, sleep quality, energy levels, mood, and skin health. Maia Niguel Hoskin, Forbes.com, 11 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 18 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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