penicilloyl-polylysine

noun
pen·​i·​cil·​lo·​yl-poly·​ly·​sine | \ˌpen-ə-ˈsil-ō-ˌil-ˌpäl-i-ˈlī-ˌsēn \

Medical Definition of penicilloyl-polylysine 

: a preparation of a penicillic acid and polylysine which is used in a skin test to determine hypersensitivity to penicillin

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