Definition of autoionization
: a process by which an excited atom becomes ionized and goes to a lower energy state by emitting one of two or more excited electrons that together possess energy exceeding the atom's ionization energy; especially : such a process yielding an electron having an energy equivalent to that of a photon of optical wavelength — compare auger effect
autoionize\" +\ verb
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Origin and Etymology of autoionization
aut- + ionization
First Known Use: 1931
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