https://doi.org/10.1351/goldbook.09682
Arising from multiple, different clones.
Note: Polyclonal antibodies (pAbs) are antibodies that are secreted by different B cell lineages within the body. They are a collection of immunoglobulin molecules that react against a specific antigen, each identifying a different epitope.
Example: A typical antiserum obtained from a conventional immunization is polyclonal.