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antacid

[ant-as-id] /æntˈæs ɪd/
adjective
1.
preventing, neutralizing, or counteracting acidity, as of the stomach.
noun
2.
an antacid agent.
Origin
1725-1735
1725-35; ant- + acid
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for antacid
  • More than any other denizens of the cosmos, comets cause astronomers to gobble down antacid tablets.
British Dictionary definitions for antacid

antacid

/æntˈæsɪd/
noun
1.
a substance used to neutralize acidity, esp in the stomach
adjective
2.
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
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Word Origin and History for antacid

1732, adjective and noun, medical hybrid from anti- + acid.

Online Etymology Dictionary, © 2010 Douglas Harper
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antacid in Medicine

antacid ant·ac·id (ānt-ās'ĭd) or an·ti·ac·id (ān'tē-ās'ĭd, ān'tī-)
adj.
Counteracting or neutralizing acidity, especially of the stomach. n.
A substance, such as sodium bicarbonate, that neutralizes acid.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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