As nouns the difference between ionization and preionization
is that ionization is (chemistry|physics) any process that leads to the dissociation of a neutral atom or molecule into charged particles ions; the state of being ionized while preionization is ionization in advance of another process.
ionization
English
Alternative forms
* ionisation
Noun
(
wikipedia ionization)
(
en noun)
(chemistry, physics) any process that leads to the dissociation of a neutral atom or molecule into charged particles ions; the state of being ionized