Multivalent /(?)/

Mul·tiv·a·lent

Multivalent

a.
  1. Having a valence greater than one, as silicon. (Chem.)
  2. Having multiple antigen-binding sites; -- of antibody molecules. (Immunology)
  3. Containing several types of antibody, to protect against more than one disease; polyvalent; -- of vaccines. (Immunology)