1. The condition of being dissociated into ions (as by heat or radiation or chemical reaction or electrical discharge)
   "the ionization of a gas"
   - ionisation [Brit] 
2. 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
   - ionisation [Brit]

Derived forms: ionizations

See also: ionize

Type of: action, activity, condition, natural action, natural process, status

Encyclopedia: Ionization

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