ant·​ac·​id | \ (ˌ)ant-ˈa-səd How to pronounce antacid (audio) , ˈant-ˌa- \

Definition of antacid

: an agent that counteracts or neutralizes acidity

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Other Words from antacid

antacid adjective

Examples of antacid in a Sentence

Recent Examples on the Web Since the late 1960s barrels of ink and antacid have been spilled on the discussions, hand-wringing and gnashing of teeth over what is the best form of government for Carroll County. Kevin Dayhoff,, "Dayhoff: Changes in the form of Carroll County government come slowly | COMMENTARY," 13 Nov. 2020 According to Trump’s medical team, the president is currently taking Vitamin D, zinc, and famotidine (an antacid typically used for heartburn and known by its brand name Pepcid). Claire Maldarelli, Popular Science, "These are the best COVID-19 treatments right now," 5 Oct. 2020 Since the beginning of time, barrels of ink and antacid have been spilled on the discussions, hand-wringing and gnashing of teeth over what form of government is best suited for Carroll County. Kevin Dayhoff,, "Dayhoff: A brief history of Carroll County government reveals challenges, changes | COMMENTARY," 18 Sep. 2020 At the medical relief tents, the number-one priority was no longer dousing people with milk and antacid to counter the effect of smoke bombs and pepper balls. Ashraf Khalil, The Christian Science Monitor, "From pepper spray to protest art: Mood turns festive in D.C.," 9 June 2020 Protesters and street medics have used what's called a LAW solution, which is a mixture of 50 percent unflavored liquid antacid and 50 percent water. Louryn Strampe, Wired, "How to Protest Safely: What to Bring, What to Do, and What to Avoid," 2 June 2020 These include antivirals for influenza, arthritis drugs, estrogen patches and even antacids. Liz Szabo, azcentral, "Chasing the elusive dream of a COVID cure," 15 May 2020 Case reports from China first noted that among COVID-19 patients at high risk of becoming critically ill, those who routinely took famotidine for gastric reflux fared much better than those who took a more expensive antacid of a different class. Melissa Healystaff Writer, Los Angeles Times, "Drugs for heartburn, gout and depression now being tested as coronavirus treatments," 2 May 2020 Doctors can prescribe several drugs to reduce nausea and vomiting that are safe to take during pregnancy, including certain antacids, antihistamines and anti-emetics. Patricia Waldron, New York Times, "Hyperemesis Gravidarum: When Morning Sickness Is So Extreme You Can’t Function," 17 Apr. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'antacid.' 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 antacid

1715, in the meaning defined above

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Time Traveler for antacid

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The first known use of antacid was in 1715

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Cite this Entry

“Antacid.” Dictionary, Merriam-Webster, Accessed 20 Apr. 2021.

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More Definitions for antacid



English Language Learners Definition of antacid

: medicine that prevents or lessens the pain caused by having too much acid in your stomach


ant·​ac·​id | \ (ˈ)ant-ˈas-əd How to pronounce antacid (audio) \
variants: also antiacid \ ˌant-​ē-​ˈas-​əd, ˌan-​ˌtī-​ How to pronounce antacid (audio) \

Medical Definition of antacid

 (Entry 1 of 2)

: tending to counteract acidity


variants: also antiacid

Medical Definition of antacid (Entry 2 of 2)

: an agent (as an alkali or absorbent) that counteracts or neutralizes acidity

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More from Merriam-Webster on antacid

Nglish: Translation of antacid for Spanish Speakers

Britannica English: Translation of antacid for Arabic Speakers Encyclopedia article about antacid

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