acid·​ic | \ ə-ˈsi-dik How to pronounce acidic (audio) , a-\

Definition of acidic

1 : acid-forming
2 : acid

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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

More acidic soil, which has a lower pH, yields blue flowers, and alkaline soil, which has a higher pH, yields pink flowers. Michele Petry, House Beautiful, "You Can Change the Color of Your Hydrangeas with This Simple Trick," 18 Apr. 2019 Alkaline water is great to drink, while the acidic pH 6 water is good to wash your face and water your plants with. Rachel Marlowe, Vogue, "How to Give the Gift of Wellness, According to Miranda Kerr," 17 Dec. 2018 In 2016, the pit made headlines when thousands of exhausted migrating snow geese landed on it and died from drinking acidic water. New York Times, "Let the Stream Run Through It," 25 June 2018 Agua Chile surprised with tender strips of beef cured in seaweed and suspended beneath a thin layer of acidic tomatillo water, with fresh raw serranos and little kisses of bonito mayo. Stephanie Burt, Condé Nast Traveler, "28 Best Restaurants in Charleston," 2 May 2018 Finally, your test also will include your soil’s pH, a measure of how acidic or alkaline your soil is. Arricca Elin Sansone, Country Living, "Here's How to Understand Fertilizer Numbers and Letters," 21 Mar. 2019 And adding an occasional quart of new oil doesn’t do anything to improve the old, broken-down, acidic oil that’s still swimming around in there. Ray Magliozzi,, "Friend who claims oil changes are unnecessary is flat-out wrong," 18 May 2018 After the wood vaporizes, the mixture is allowed to cool, forming an emulsion (a sort of mixture) of water, acidic oil, and sugars. Chris Lee, Ars Technica, "Lumber’s lure: Thanks to physics, viable biofuel may grow in the woods," 5 Apr. 2018 Skin is naturally on the more acidic side with pH levels around 4 to 6. Devon Abelman, Allure, "Then I Met You, a New Skin-Care Brand, Debuts With Double Cleansing Duo," 17 Oct. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'acidic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of acidic

1866, in the meaning defined at sense 1

History and Etymology for acidic

acid entry 1 + -ic entry 1

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Statistics for acidic

Last Updated

15 Jun 2019

Look-up Popularity

Time Traveler for acidic

The first known use of acidic was in 1866

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More Definitions for acidic



English Language Learners Definition of acidic

: having a very sour or sharp taste
: containing acid


acid·​ic | \ ə-ˈsid-ik, a- How to pronounce acidic (audio) \

Medical Definition of acidic

1 : acid-forming
2 : acid

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More from Merriam-Webster on acidic

Rhyming Dictionary: Words that rhyme with acidic

Thesaurus: All synonyms and antonyms for acidic

Spanish Central: Translation of acidic

Nglish: Translation of acidic for Spanish Speakers

Britannica English: Translation of acidic for Arabic Speakers

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