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.
The device achieves an ultra-low detection limit of 0.14 pM using gold nanoparticles and titanium carbide MXene films, with autonomous sweat induction via iontophoresis, microfluidic sampling, and real-time BLE wireless transmission to mobile devices. Josipa Majic Predin, Forbes.com, 27 Feb. 2026 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

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 13 Mar. 2026.

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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