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excited state ex·cit·ed state (ĭk-sī'tĭd)
The condition of an atom or molecule after absorbing energy from exposure to light, electricity, elevated temperature, or a chemical reaction, and which may be a necessary prelude to a chemical reaction or to the emission of light.
|excited state |
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. Compare ground state.