bivalent

¹bi·va·lent

adj \(ˈ)bī-ˈvā-lənt\

Definition of BIVALENT

1

a : divalent b : having two combining sites <a bivalent antibody capable of binding to two molecules of an antigen>

2

: associated in pairs in synapsis

3

: conferring immunity to two diseases or two serotypes <a bivalent vaccine protecting against hepatitis A and hepatitis B>