acidic

adjective

acid·​ic ə-ˈsi-dik 

a-

1

: acid-forming

2

: acid

Synonyms of acidic

• acid
• sour

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

With blistering satirical slants and a steady mix of acidic jabs at middle-class life, Darko should be boffo among the teen and young adults segment as well as those viewers still plugged into a sophomoric self-identity. — Duane Byrge, HollywoodReporter, 26 Oct. 2026

Rice vinegar is acidic and tart, with little natural sweetness. — Bon Appétit, Bon Appetit Magazine, 23 Oct. 2026

Equatic pumps seawater through an electrolyzer, where an electric current passes through a sandwich of plastic and metal plates and separates the water into two streams, one alkaline and one acidic, while also producing oxygen and hydrogen. — Alec Luhn, Scientific American, 20 Oct. 2026

Under alkaline conditions, splitting water molecules takes over 100 times longer than in acidic environments. — Mrigakshi Dixit, Interesting Engineering, 20 Oct. 2026

Word History

Etymology

acid entry 1 + -ic entry 1

First Known Use

1866, in the meaning defined at sense 1

Rhymes for acidic

• davidic
• fluidic
• hasidic

Kids Definition

acidic

adjective

acid·​ic ə-ˈsid-ik 

a-

1

: acid-forming

2

: acid

Medical Definition

acidic

adjective

acid·​ic ə-ˈsid-ik, a- 

1

: acid-forming

2

: acid