transdermal

trans·der·mal

adj \ˌtran(t)s-ˈdər-məl, ˌtranz-\

Definition of TRANSDERMAL

: relating to, being, or supplying a medication in a form for absorption through the skin into the bloodstream <transdermal drug delivery> <a transdermal nicotine patch>

—trans·der·mal·ly \-ē\ adverb