Definition of polybasic in English:

polybasic

adjective

Chemistry
  • 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.

Pronunciation

polybasic

/ˌpɒlɪˈbeɪsɪk/