Multivalency

Multivalence or adj. Multivalent , also polyvalence stands for:

in chemistry the binding capacity of an atom or an ion of two or more, see valence (chemistry)
in classical logic the basic principle true / false, see principle of two-valued
in motor vehicles, a drive that can be operated with two or more different fuels, see hybrid drive # multivalent drives
in heating technology systems that can use two or more different fuels, see building heating
an arrangement of homologous chromosomes to groups during meiosis, see bivalent (meiosis)

This term includes the specifications