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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-sītĭd /
  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

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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:

According to Grzywacz, the nucleus begins in an excited state and must release energy to stabilize.

From Science Daily Mar. 13, 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

To capture the protons in this excited state and explore their 3D resonances, the team sent a high-energy electron beam into a chamber of cooled hydrogen gas.

From Salon Sep. 1, 2023

As a result, the lawmaker said, Prigozhin, committed treason due to "exorbitant ambitions", money and what he cast as an "excited state".

From Reuters Jun. 29, 2023

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

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