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.
In the lead- and zinc-rich northeast, mining can release acidic drainage caused by oxidation of sulfide minerals, which can leach heavy metals from mining waste, contaminating waterways. Stephanie Pappas, Scientific American, 23 Jan. 2026 Fill the pot with loose, slightly acidic soil that drains quickly. Karen Brewer Grossman, Southern Living, 22 Jan. 2026 These elements are also easier to extract from acid mine waste because the acidic water has already released them from the surrounding rock. Alan Collins, The Conversation, 21 Jan. 2026 Balsam fir is native to moist woods and prefers well-draining, acidic soil over dense, clay soil. Lee Wallender, The Spruce, 20 Jan. 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

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Cite this Entry

“Acidic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/acidic. Accessed 28 Jan. 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

Last Updated: - Updated example sentences
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