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

Research suggests, however, that this risk is unique to the oral forms and doesn’t apply to the transdermal kind (or, the patches). —Erica Sloan, SELF, 7 Nov. 2025

Additionally, another study presented at the meeting found that transdermal hormone therapy might be the best option for women with existing mental health conditions compared to oral hormone therapy. —Helen Carefoot, Flow Space, 29 Oct. 2025

Often, transdermal patches are used for medications that need to be slowly absorbed over time. —Katia Riddle, NPR, 15 Sep. 2025

The transdermal stress solution absorbs the water-soluble molecules through your skin to calm and restore with bioavailable magnesium, potassium, vitamin B6 and amino acid tryptophan. —Celia Shatzman, Forbes.com, 29 June 2025

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