ionisation has definitions from the field of chemistry
1
[ noun ] the condition of being dissociated into ions (as by heat or radiation or chemical reaction or electrical discharge)

Synonyms

ionization

Examples

"the ionization of a gas"

Related terms

condition ionise ionize

2
[ noun ] (chemistry) 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

ionization

Related terms

natural_process ionise ionize

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