1. ionisation, ionization

the condition of being dissociated into ions (as by heat or radiation or chemical reaction or electrical discharge)

Example Sentences:
'the ionization of a gas'

Synonyms

• ionisation

2. ionisation, ionization

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

Synonyms

• ionisation