Noun
therapy that uses a local electric current to introduce the ions of a medicine into the tissues
Source: WordNetCornell presented devices such as power lasers and other energy-emitting devices including those based on sound phoresis, iontophoresis and photodynamics to activate topical products. Source: Internet
I like the part where he talks about "a sort of iontophoresis"; it applies to today's modern world and he predicted this in 1962. Source: Internet