Also found in: Dictionary.
Denoting an acid having four acid groups and thereby being able to neutralize 4 Eq of base.
1 adj, describing a compound that has four acidic hydrogen atoms replaced by metal ions.
2 n, an alcohol containing four hydroxyl groups.
tetrabasic(tĕt″ră-bā′sĭk) [Gr. tetras, four, + basis, base]
Having four replaceable hydrogen atoms, said of an acid or acid salt.