transdermal

adjective

trans·​der·​mal tran(t)s-ˈdər-məl 

tranz-

: relating to, being, or supplying a medication in a form for absorption through the skin into the bloodstream

transdermal drug delivery

transdermal nitroglycerin

transdermal nicotine patch

transdermally

tran(t)s-ˈdər-mə-lē 

tranz-

adverb

Examples of transdermal in a Sentence

Recent Examples on the Web

But the patch is not the only transdermal estrogen. — Cara Lynn Shultz, PEOPLE, 9 Apr. 2026

Other transdermal methods which avoid the blood stream such as gels and creams often aren’t covered by insurance and cost three times as much as patches. — Laura Trujillo, USA Today, 6 May 2026

Meanwhile, algae extract helps prevent transdermal water loss. — Conçetta Ciarlo, Vogue, 20 Mar. 2026

Two years later, the state expanded again, this time greenlighting cannabis tinctures, transdermal patches, lotions, and capsules. — Dario Sabaghi, Forbes.com, 16 May 2026

Word History

First Known Use

1944, in the meaning defined above

Rhymes for transdermal

• nonthermal
• dermal
• thermal
• ectodermal
• endodermal
• epidermal
• epithermal
• geothermal
• hydrothermal
• intradermal
• isothermal
• mesodermal

Medical Definition

transdermal

adjective

trans·​der·​mal ˌtran(t)s-ˈdər-məl, ˌtranz- 

: 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

transdermally

-ē 

adverb