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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

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

From Washington Times ● Dec. 6, 2023

Topics of study include farming seaweed, fertilizing algae growth with iron, and adding antacid to increase the ocean’s ability to absorb carbon dioxide.

From Science Magazine ● Sep. 13, 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

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

You should also have a first-aid kit in your go bag that contains bandages and gauze, antibiotic cream, antacids, medical tape, anti-diarrhea medications, antihistamines and over-the-counter pain relievers.

From Los Angeles Times ● Jan. 4, 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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