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

Making transdermal patches involves more complex manufacturing than treatments like pills. — Angelica Peebles, CNBC, 26 June 2026

People taking diuretics, beta-blockers or any transdermal medication patches should check with a doctor first since heat significantly increases drug absorption through the skin. — Allison Palmer updated June 24, Fort Worth Star-Telegram, 24 June 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

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

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