trichloroacetic acid

noun

tri·​chlo·​ro·​ace·​tic acid ˌtrī-ˌklȯr-ō-ə-ˈsē-tik- How to pronounce trichloroacetic acid (audio)
variants or less commonly trichloracetic acid
: a strong vesicant pungent acid C2Cl3HO2 used in weed control and in medicine as a caustic and astringent

Examples of trichloroacetic acid in a Sentence

Recent Examples on the Web While these can be good for rolling and boxcar scars, ice pick scars may require a more intense peel, like TCA (trichloroacetic acid) cross therapy. Aryelle Siclait, Women's Health, 26 May 2023 Common active ingredients in pro-grade peels include glycolic, mandelic, salicylic, and lactic acids, along with trichloroacetic acid. Janell M. Hickman, SELF, 27 July 2022 Jessner, which unclogs pores with equal parts salicylic acid, lactic acid, and resorcinol, an antiseptic exfoliant, and trichloroacetic acid (TCA), which helps brighten dull skin, are the most popular options. Kaitlin Clark, Allure, 1 Nov. 2021 Medium depth peels are most commonly performed with glycolic acid, trichloroacetic acid (TCA), or Jessner’s solution, which is a mixture of lactic acid, salicylic acid, and an antiseptic exfoliant. Julie Ricevuto, Allure, 19 Nov. 2020 For up to medium-depth spot removal, chemical peels including trichloroacetic acid (TCA) or glycolic acid superficially injure the skin to provoke a wound-healing response that expels dark pigment. Mackenzie Wagoner, Vogue, 2 Oct. 2020

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'trichloroacetic acid.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

International Scientific Vocabulary

First Known Use

1885, in the meaning defined above

Time Traveler
The first known use of trichloroacetic acid was in 1885

Dictionary Entries Near trichloroacetic acid

Cite this Entry

“Trichloroacetic acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/trichloroacetic%20acid. Accessed 23 Jul. 2024.

Medical Definition

trichloroacetic acid

noun
tri·​chlo·​ro·​ace·​tic acid ˌtrī-ˌklōr-ō-ə-ˌsēt-ik-, -ˌklȯr- How to pronounce trichloroacetic acid (audio)
variants also trichloracetic acid
: a strong vesicant pungent acid C2Cl3HO2 made usually by chlorinating acetic acid or by oxidizing chloral and used in medicine as a caustic and astringent compare monochloroacetic acid

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