Dictionary.com
Thesaurus.com

excited state

American  

noun

Physics.
  1. any of the energy levels of a physical system, especially an atom, molecule, etc., that has higher energy than the lowest energy level.


excited state Scientific  
/ ĭk-sī′tĭd /
  1. A state of a physical system in which the system has more than the minimum possible potential energy. Excited states tend to be unstable and easily or spontaneously revert to lower energy states, giving off energy.

  2. Compare ground state


Etymology

Origin of excited state

First recorded in 1925–30


Compare meaning

How does excited-state compare to similar and commonly confused words? Explore the most common comparisons:


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

When light strikes a tiny imperfection inside a material such as diamond or silicon carbide, it can transfer energy to electrons and push them into an excited state.

From Science Daily ● Oct. 23, 2026

In a typical cavity QED setup, each atom has a ground state and an excited state separated by a specific energy difference.

From Science Daily ● Jun. 6, 2026

One example is the ability to charge a so-called quantum battery, which requires coherent light that can collectively push atoms into an excited state.

From Science Daily ● Dec. 23, 2025

With its simple, scalable synthesis, strong light absorption, stable photophysical characteristics, and long lived excited state, the manganese-based material could support future large scale photochemical applications.

From Science Daily ● Nov. 26, 2025

And more as a consequence of the excited state in which this idea put Gregor than as a result of an actual decision, he swung himself with all his might out of the bed.

From "The Metamorphosis" by Franz Kafka

Random Word

Spin the wheel and learn a new word!

Get a word

Vocabulary.com logo
by dictionary.com

Just like flashcards, but way more fun

Don't take our word for it. Leave the boring studying behind and join VocabTrainer today. You'll learn even faster and never look back.

Take me to Vocabulary.com