[fo″no-fo-re´sis] the transdermal introduction of a topical agent into the body using mechanical energy supplied by ultrasound.
pho·no·pho·re·sis
(fō'nō-fŏr-ē'sis) Introduction of antiinflammatory drugs through the skin by the use of ultrasound. See also: iontophoresis[phono- + G. phorēsis, a carrying]