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ionization

noun

ion·​i·​za·​tion ˌī-ə-nə-ˈzā-shən How to pronounce ionization (audio)
plural ionizations
1
: the act or process of ionizing something : conversion of a substance into ions
Then other photons, collisions or an electric field cause ionization of the excited neutral species. G. Samuel Hurst and Vladilen S. Letokhov
2
: the state of being ionized
While the light flashes themselves are not harmful, the tissue ionization caused by the intruding particle near the end of its track is indeed deadly to some affected cells. James D. Burke

Word History

Etymology

ion + -ization

First Known Use

1891, in the meaning defined at sense 1

Time Traveler
The first known use of ionization was in 1891

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