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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

Those taking H2 blockers were 40% more likely and those taking antacid supplements were 30% more likely.

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

“This is the antacid for the ocean,” Adkins says.

From Science Magazine ● Dec. 8, 2021

Candice found a box of chewable antacid tablets in the cabinet.

From "The Parker Inheritance" by Varian Johnson

The first-aid kit in your “go-bag” should have standard supplies, but double-check that you’ve got bandages and gauze, medical tape, antibiotic cream, antacids, anti-diarrhea medications, antihistamines and over-the-counter pain relievers.

From Los Angeles Times ● Jan. 8, 2025

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

From Science Daily ● Apr. 24, 2024

She had complained of increasingly sharp abdominal pain for months but was told only to avoid spicy foods and take antacids.

From Seattle Times ● Mar. 13, 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

He quickly peeled away the foil wrapping from a roll of antacids.

From "Native Speaker" by Chang-rae Lee

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