acidic

adjective

acid·​ic ə-ˈsi-dik How to pronounce acidic (audio)
a-
Synonyms of acidicnext
1
: acid-forming
2
: acid

Examples of acidic in a Sentence

The soil in our garden is very acidic. the acidic water of a polluted lake
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Avoid using vinegar and other acidic cleaners to clean glass doors in showers with natural stone because the acidity can etch or damage the finish. Karen Brewer Grossman, Southern Living, 5 May 2026 Sodium bisulfate is an acidic salt often used to lower pH in swimming pools, spas and industrial water systems, and is also used in metal finishing, food processing, cleaning products and sanitizing. Kris Habermehl, CBS News, 4 May 2026 The Regent thrives in full sun and prefers moist, well-draining, slightly acidic soil. Sj McShane, Martha Stewart, 4 May 2026 When the soil is too acidic, add lime to raise the soil's pH level. Lee Wallender, The Spruce, 2 May 2026 See All Example Sentences for acidic

Word History

First Known Use

1866, in the meaning defined at sense 1

Time Traveler
The first known use of acidic was in 1866

Browse Nearby Words

Cite this Entry

“Acidic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/acidic. Accessed 8 May. 2026.

Kids Definition

acidic

adjective
acid·​ic ə-ˈsid-ik How to pronounce acidic (audio)
a-
1
: acid-forming
2
: acid

Medical Definition

acidic

adjective
acid·​ic ə-ˈsid-ik, a- How to pronounce acidic (audio)
1
: acid-forming
2
: acid

More from Merriam-Webster on acidic

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