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deexcitation

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de-ex⋅cite

[dee-ik-sahyt] verb, -cit⋅ed, -cit⋅ing. Physics.
–verb (used with object)
1. to cause (an atom) to fall from an excited energy level to a lower energy level.
–verb (used without object)
2. to become de-excited.
Also, de⋅ex⋅cite.


Origin:
1960–65


de-ex⋅ci⋅ta⋅tion, de⋅ex⋅ci⋅ta⋅tion, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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