'Ionization' definitions:

Definition of 'ionization'

From: WordNet
noun
The condition of being dissociated into ions (as by heat or radiation or chemical reaction or electrical discharge); "the ionization of a gas" [syn: ionization, ionisation]
noun
The process of ionizing; the formation of ions by separating atoms or molecules or radicals or by adding or subtracting electrons from atoms by strong electric fields in a gas [syn: ionization, ionisation]

Definition of 'Ionization'

From: GCIDE
  • Ionization \I`on*i*za"tion\, n. (Elec. Chem.) the process of converting neutral atoms or molecules into ions. The process may occur by dissolving an ionic substance in a dissociating solvent, such as water, or by adding or subtracting an electron to or from an atom or molecule. The latter process occurs, for example, in an electron beam in a mass spectrometer and by interaction of substances with ionizing radiation. [PJC]

Synonyms of 'ionization'

From: Moby Thesaurus