ionisation
n 1: 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}]
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 [syn:
{ionization}, {ionisation}]