acidify

verb

acid·​i·​fy ə-ˈsi-də-ˌfī 

a-

acidified; acidifying

transitive verb

1

: to make acid

2

: to convert into an acid

acidification

ə-ˌsi-də-fə-ˈkā-shən 

a-

noun

Examples of acidify in a Sentence

Pollution caused the soil to acidify.

Recent Examples on the Web

Dozens of others were fed an Abbott fortifier that wasn’t acidified. — David Hilzenrath, Miami Herald, 9 Apr. 2026

The ocean is currently acidifying 10 times faster than at any prior time in the last 300 million years. — Lauren Leffer, Popular Science, 27 Aug. 2025

For best results, acidify soil with gypsum prior to planting and apply gypsum twice a year as a topical amendment on the soil surface. — Joshua Siskin, Oc Register, 18 Sep. 2025

Here are sustainable organic methods for acidifying soil. — Lauren Landers, Better Homes & Gardens, 3 Mar. 2026

Word History

Etymology

borrowed from French acidifier, from acide acid entry 1 + -ifier -ify

First Known Use

1782, in the meaning defined at sense 1

Rhymes for acidify

• alveoli
• antinomy
• areolae
• demystify
• detoxify
• disqualify
• diversify
• electrify
• exemplify
• fasciculi
• identify
• indemnify

Kids Definition

acidify

verb

acid·​i·​fy ə-ˈsid-ə-ˌfī 

acidified; acidifying

1

: to make acid

2

: to change into an acid

acidification

ə-ˌsid-ə-fə-ˈkā-shən 

noun

Medical Definition

acidify

verb

acid·​i·​fy -ə-ˌfī 

acidified; acidifying

transitive verb

1

: to make acid

2

: to convert into an acid

intransitive verb

: to become acid

acidifiable

ə-ˌsid-ə-ˈfī-ə-bəl, a- 

adjective

acidification

-fə-ˈkā-shən 

noun

acidifier

ə-ˈsid-ə-ˌfī(-ə)r, a- 

noun