polybasic
/ˌpɒlɪˈbeɪsɪk/Chemistry
adjective
1Of an acid: having more than one replaceable hydrogen atom per molecule, or two or more carboxylic acid groups. Formerly also: †designating a salt of such an acid (obsolete ).
2Of an alcohol: containing two or more hydroxyl groups per molecule; polyhydric.
3Of the nature of a polybase; consisting of several or many bases.
Origin
Mid 19th century. From poly- + basic.