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 On Wednesday, the FDA also announced that the drug company Mylan has recalled three lots of another antacid, nizatidine, which were also found to contain trace amounts of NDMA. Erika Edwards, NBC News, "FDA announces more recalls of antacids containing traces of carcinogen," 9 Jan. 2020 Just a few elements of his Bitcoin Trader Starter Kit: All-meat diet, technical analysis, (cheap) whiskey, antacids. David Z. Morris, Fortune, "In Cryptocurrency, It’s Bitcoiners vs. Everyone Else," 8 Jan. 2020 These include analgesic-antacid combinations, which offer temporary relief of minor aches and pains and upset stomach, and help restore mental alertness. Laura Reiley, Washington Post, "Drinking with no consequences? This was the year of the hangover hack.," 19 Dec. 2019 Diana half-carried her to the bathroom, offering her some Alka-Seltzer and a sip of Gatorade to wash the antacid down. Nina Martin, ProPublica, "The Extraordinary Danger of Being Pregnant and Uninsured in Texas," 8 Dec. 2019 As far as treatment goes, antacids are what doctors prescribe to relieve stomach ulcer symptoms. Maggie O'neill,, "What Is a Stomach Ulcer? Here’s What You Need to Know About Symptoms and Treatment," 1 Nov. 2019 The cost of richly valued companies’ volatile share prices isn’t measured only in antacid. Washington Post, "Pass the Antacids for Cloud Software Stocks," 8 Sep. 2019 Babies who are given antacids or antibiotics during their first 6 months of life may have a sharply higher risk for allergies or asthma, a large new study warns. Alan Mozes,, "Babies given antacids, antibiotics may have higher risk for allergies, asthma," 3 Apr. 2018 Ranitidine, as Zantac is known in generic form, is an antacid and antihistamine used to treat and prevent a range of gastrointestinal disorders. Matthew Perrone,, "Zantac contains cancer-causing chemical, FDA says," 13 Sep. 2019

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

Time Traveler

The first known use of antacid was in 1715

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Last Updated

16 Jan 2020

Cite this Entry

“Antacid.” Dictionary, Merriam-Webster, Accessed 26 Feb. 2020.

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How to pronounce antacid (audio)

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 antiacid (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

Rhyming Dictionary: Words that rhyme with antacid

Spanish Central: Translation of antacid

Nglish: Translation of antacid for Spanish Speakers

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

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