ion exchange
— Noun
– English
~ a process in which ions are exchanged between a solution and an insoluble (usually resinous) solid; widely used in industrial processing
ion
— Noun
– English
~ a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons
ion beam
— Noun
– English
~ a beam of ions moving in the same direction at the same speed
ion engine
— Noun
– English
~ a type of reaction-propulsion engine to propel rockets in space; a stream of positive ions is accelerated to a high velocity by an electric field