iontophoresis

noun

ion·​to·​pho·​re·​sis (ˌ)ī-ˌän-tə-fə-ˈrē-səs How to pronounce iontophoresis (audio)
: the introduction of an ionized substance (such as a drug) through intact skin by the application of a direct electric current
iontophoretic adjective
iontophoretically adverb

Examples of iontophoresis in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Using iontophoresis, the device delivers either a saline solution for electrical stimulation or a fluoxetine drug solution. Diya Dwarakanath, IEEE Spectrum, 13 Nov. 2025 This may include iontophoresis, Botox injections, or surgery (in severe cases).3 Iontophoresis uses a mild electrical current to block the sweat glands temporarily. Brandi Jones, Health, 30 July 2025 Recreating those sensations in VR has resulted in a handful of attempts at a flavor user interface, relying on such mechanisms as chemical, thermal, and electrical stimulation, as well as iontophoresis. Ars Technica, 26 Nov. 2024 Tap water iontophoresis: One case report described successful treatment with this procedure, which involves a mild electrical current passed through tap water to temporarily shut off sweat glands. Michael Menna, Verywell Health, 28 Oct. 2024

Word History

Etymology

borrowed from German Iontophorese, from ionto-, combining form representing Ion ion (borrowed from Greek iont-, iṓn, present participle of iénai "to go") + -o- -o- + -phorese -phoresis — more at issue entry 1

First Known Use

1909, in the meaning defined above

Time Traveler
The first known use of iontophoresis was in 1909

Browse Nearby Words

Cite this Entry

“Iontophoresis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/iontophoresis. Accessed 25 Nov. 2025.

Medical Definition

iontophoresis

noun
ion·​to·​pho·​re·​sis (ˌ)ī-ˌänt-ə-fə-ˈrē-səs How to pronounce iontophoresis (audio)
plural iontophoreses -ˌsēz How to pronounce iontophoresis (audio)
: the introduction of an ionized substance (as a drug) through intact skin by the application of a direct electric current
iontophorese transitive verb
iontophoresed; iontophoresing
iontophoretic adjective
iontophoretically adverb
Last Updated: - Updated example sentences
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