sesquicarbonate
noun
ses·qui·car·bon·ate
ˌse-skwi-ˈkär-bə-ˌnāt 
-nət
: a salt (such as Na2CO3·NaHCO3·2H2O) that is neither a simple normal carbonate nor a simple bicarbonate but often a combination of the two
Cite this Entry
“Sesquicarbonate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sesquicarbonate. Accessed 3 Nov. 2025.
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