diacid

1 of 2

adjective

di·​ac·​id (ˌ)dī-ˈa-səd How to pronounce diacid (audio)
variants or diacidic
: able to react with two molecules of a monobasic acid or one of a dibasic acid to form a salt or ester
used especially of bases

diacid

2 of 2

noun

: an acid with two acid hydrogen atoms

Word History

Etymology

Noun

International Scientific Vocabulary

First Known Use

Adjective

1866, in the meaning defined above

Noun

circa 1929, in the meaning defined above

Time Traveler
The first known use of diacid was in 1866

Dictionary Entries Near diacid

Cite this Entry

“Diacid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diacid. Accessed 24 Jun. 2024.

Medical Definition

diacid

1 of 2 adjective
di·​ac·​id (ˈ)dī-ˈas-əd How to pronounce diacid (audio)
variants or diacidic
1
: able to react with two molecules of a monobasic acid or one of a dibasic acid to form a salt or ester
used especially of bases
2
: containing two replaceable hydrogen atoms
used especially of acid salts

diacid

2 of 2 noun
: an acid with two acid hydrogen atoms
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