SESQUICARBONATE

Pronunciation: ˌ ses-kwi- ' kär-b ə - ˌ n ā t, -n ə t

Function: noun

Date: 1825

: a salt (as Na 2 CO 3 ·NaHCO 3 ·2H 2 O) that is neither a simple normal carbonate nor a simple bicarbonate but often a combination of the two