polyvalent

Adjective

 * 1) Multivalent; having a number of different forms, purposes, meanings, aspects or principles.
 * 2)  Having a high valence, especially more than three.
 * 3)  Having multiple valencies.
 * 4)  Containing antibodies to more than one kind of pathogen.
 * 5)  Having several different syllabic or semantic meanings depending on the context.

Etymology
From poly- and -valent

Adjective

 * 1) versatile, multipurpose; that has various uses, functions, or capacities

Noun

 * 1) an employee who carries out various different functions