penicilloyl polylysine

benzylpenicilloyl polylysine

 a skin test antigen prepared from polylysine and a penicillic acid; intradermal reaction elicits a wheal and erythema response in those sensitive to penicillin.

pen·i·cil·lo·yl pol·y·ly·sine

(pen'i-sil'ō-il pol'ē-lī'sēn), A preparation of polylysine and a penicillic acid, used intradermally in the diagnosis of penicillin sensitivity; sensitive subjects may react with systemic manifestations, including generalized cutaneous eruptions.