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

The acidic taste of pickle juice is thought to send signals to the nervous system that stop the cramp, Lund says. — Chantelle Lee, Time, 26 June 2026

Some require extreme heat or highly acidic conditions. — Aamir Khollam, Interesting Engineering, 25 June 2026

Baking soda is alkaline and breaks down the acidic compounds responsible for stale and sour odors. — Louise Parks, Martha Stewart, 17 June 2026

The vinegary vegetables were far too acidic and spicy for the wine, which tasted flat and bitter alongside the giardiniera. — Mike Desimone, Robb Report, 21 June 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