energy level

noun

Any of the discrete stable energies that a quantum mechanical system (such as the electrons of an atom) can have.

“My energy levels have dropped since I stopped exercising.”

Similar
energy state
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Meanings

nounenergy level (plural energy levels)

plural energy levels

  1. natural sciencesAny of the discrete stable energies that a quantum mechanical system (such as the electrons of an atom) can have.
  2. Used other than figuratively or idiomatically: see energy, level.

    My energy levels have dropped since I stopped exercising.

Synonyms & antonyms

nouna definite stable energy that a physical system can have; used especially of the state of electrons in atoms or molecules

Similar
energy state
Broader
energyfree energy

Synonym sets from Open English WordNet, CC BY 4.0.

Translations

Chinese Mandarin 能級 /能级
  • 能級 /能级 (néngjí)any of the discrete stable energies
Esperanto energinivelo
  • energiniveloany of the discrete stable energies
Finnish energiataso
  • energiatasoany of the discrete stable energies
German Energieniveau
  • Energieniveauany of the discrete stable energies
Norwegian energinivå
  • energinivåany of the discrete stable energies
Spanish nivel energético
  • nivel energéticoany of the discrete stable energies
Ukrainian енергети́чний рі́вень
  • енергети́чний рі́вень (enerhetýčnyj rívenʹ)any of the discrete stable energies
Cite this entry
APA

energy level. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/energy%20level

MLA

“energy level.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/energy%20level. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “energy level,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/energy%20level.

Source: energy level on Wiktionary, CC BY-SA 4.0.