acetic acid

noun
ace·​tic acid | \ ə-ˈsē-tik- How to pronounce acetic acid (audio) \

Definition of acetic acid

: a colorless pungent liquid acid C2H4O2 that is the chief acid of vinegar and that is used especially in synthesis (as of plastics)

Examples of acetic acid in a Sentence

Recent Examples on the Web In its simplest chemical form, acetate, or acetic acid, is vinegar. Caroline Delbert, Popular Mechanics, "When We Settle on Mars, Here's How We'll Build Life from the Ground Up," 13 Apr. 2020 Wang hopes that in the future, the technology could produce other useful products like ethanol and acetic acid. Jennifer Leman, Popular Mechanics, "Here's a Machine That Turns Carbon Dioxide Into Liquid Fuel," 4 Sep. 2019 With enough time in a moderate temperature, wild yeasts and bacteria will help produce lactic and acetic acids, noticeably souring the dough. Stephen Jones & Stacy Adimando, Saveur, "The Bread Lover’s Guide to Raising Your Own Sourdough Starter," 30 Sep. 2016 The most common solution consists of copper chloride, citric acid (or glacial acetic acid), and hydrogen peroxide mixed with distilled water. Jennifer Ouellette, Ars Technica, "Scientists unlock the chemical secrets of a 19th-century photography technique," 6 Nov. 2019 Prints processed in a solution of hydrogen peroxide and water, or acetic acid and water, showed no bleaching or emulsion lift at all. Jennifer Ouellette, Ars Technica, "Scientists unlock the chemical secrets of a 19th-century photography technique," 6 Nov. 2019 Comprehensive analyses of bacterial metabolic products revealed that acetic acid excreted by the NCC2705 strain in the gut inhibited the activity of a toxin produced by the pathogenic E. coli (Shiga toxin). Enea Rezzonico, Scientific American, "Nestlé's research on nutrition and the human gut microbiome," 17 Feb. 2015 For instance, acetic acid in a fabric display-case liner might be safe for a clothing exhibit but would corrode metallic art. National Geographic, "This chemist is preserving art—before it’s too late," 23 July 2019 Some studies linked acetic acid with a mild reduction in blood sugar spikes after meals. Jaclyn London, Ms, Rd, Cdn, Good Housekeeping, "The Real Benefits of Apple Cider Vinegar, According to a Nutritionist," 21 Nov. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'acetic acid.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of acetic acid

1788, in the meaning defined above

History and Etymology for acetic acid

acetic borrowed from French acétique, from Latin acētum "sour wine, vinegar" (noun derivative from *acētus, verbal adjective of acēre "to be sour," going back to Indo-European h2eḱ-eh1- "to be sharp") + French -ique -ic entry 1 — more at edge entry 1

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Time Traveler for acetic acid

Time Traveler

The first known use of acetic acid was in 1788

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Statistics for acetic acid

Last Updated

12 May 2020

Cite this Entry

“Acetic acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/acetic%20acid. Accessed 8 Jul. 2020.

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More Definitions for acetic acid

acetic acid

noun

Medical Definition of acetic acid

: a colorless pungent liquid acid C2H4O2 that is the chief acid of vinegar and that is used especially in synthesis (as of plastics) and occasionally in medicine as an astringent and styptic

More from Merriam-Webster on acetic acid

Britannica.com: Encyclopedia article about acetic acid

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