di·ac·id
(ˌ)dī-ˈa-səd 
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
: an acid with two acid hydrogen atoms
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“Diacid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diacid. Accessed 30 Jun. 2025.
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diacid
1 of 2 adjective
di·ac·id
(ˈ)dī-ˈas-əd
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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