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Synonyms

antacid

American  
[ant-as-id] / æntˈæs ɪd /

adjective

  1. preventing, neutralizing, or counteracting acidity, as of the stomach.


noun

antacids plural
  1. an antacid agent.

antacid British  
/ æntˈæsɪd /

noun

  1. a substance used to neutralize acidity, esp in the stomach

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adjective

  1. having the properties of this substance

    antacid tablets

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of antacid

First recorded in 1725–35; ant- + acid

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

At 29, abdominal pain was met with an antacid.

From Slate May 6, 2026

The acid-reducing drugs includeproton pump inhibitors such as omeprazole and esomeprazole, histamine H2-receptor antagonists, or H2 blockers, such as cimetidine and famotidine, and antacid supplements.

From Science Daily Apr. 24, 2024

For most of his life, he had what he described as run-of-the-mill heartburn, usually triggered by eating late at night, and he would have to take a couple of antacid tablets.

From New York Times Feb. 8, 2024

Send the man a case of antacid, he’s going to need it.

From Washington Times Dec. 6, 2023

He wished Tartarus had better beverage options, or maybe a tree that dispensed antacid fruit.

From "The House of Hades" by Rick Riordan

And 22% of those taking antacid supplements had severe headache, compared to 20% of those not taking antacids.

From Science Daily Apr. 24, 2024

They gave him nausea medication and antacids, and he reported feeling better later that day, according to the report.

From Los Angeles Times Feb. 16, 2024

Doctors complain of a shortage of medicines - paracetamol, antibiotics, antacids, cough syrups - at the 114 relief camps housing more than 12,000 Kuki evacuees, including some with terminal illnesses and HIV-Aids.

From BBC Jul. 12, 2023

Magnesium can also alter the effectiveness of several medications, including some common antibiotics, diuretics and heart medications, alongside over-the-counter antacids and laxatives.

From Salon Feb. 1, 2023

“How many antacids do you think Fleetwood has eaten by now?”

From "The Bletchley Riddle" by Ruta Sepetys and Steve Sheinkin

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