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Definition of antacid

antacid

/æntˈæs.ɪd/
ant · ac · id
Plural:antacids
•
Adjective:antacid
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antacid Lexical Profile

antacid Game Scores & Validity

• noun

1

A medicinal substance, typically containing alkaline ions such as calcium, magnesium, or aluminum, taken to neutralize excess stomach acid and relieve indigestion or heartburn.

Example

"After eating the spicy meal, he took a chewable antacid to soothe his heartburn."

Synonyms
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Antonyms
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• adjective

1

Preventing, neutralizing, or counteracting acidity, especially in the stomach.

Example

"The pharmacist recommended an antacid liquid to coat the stomach lining."

Synonyms
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Antonyms
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• Rhymes for antacid

• Nearby Words

answerer
answerphone
ant
antacid
antagonism
antagonist
antagonistic

Word Origin & Etymology

Coined in the early 18th century from the Greek prefix 'ant-' (variant of 'anti-', meaning 'against') combined with 'acid' (from Latin 'acidus', meaning 'sour').

Cite this Entry

Wordmom. (2026). Definition of Antacid. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/antacid
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