photoionization

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

Definition of photoionization 

: ionization (as in the ionosphere) of a molecule or atom caused by absorption of radiant energy

Other words from photoionization

photoionize \ˌfō-tō-ˈī-ə-ˌnīz \ transitive verb

First Known Use of photoionization

1914, in the meaning defined above

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Time Traveler for photoionization

The first known use of photoionization was in 1914

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