Dictionary

photoionization

photoionization

noun pho·to·ion·i·za·tion \-ˌī-ə-nə-ˈzā-shən\

Definition of PHOTOIONIZATION

:  ionization (as in the ionosphere) of a molecule or atom caused by absorption of radiant energy
pho·to·ion·ize \-ˈī-ə-ˌnīz\ transitive verb

First Known Use of PHOTOIONIZATION

1914

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