Bivalent may refer to: Bivalent (chemistry), a molecule formed from two or more atoms bound together Bivalent ligand, a ligand of two drug-like molecules Bivalent (genetics), a pair of homologous chromosomes Bivalent vaccine, a vaccine directed at two pathogens or two strains of a pathogen Bivalent (engine), an engine that can operate on two different types of fuel A verb with a valency of two Principle of bivalence, a semantic principle in logic
See also Valence (disambiguation) Bivalve (disambiguation)