heterolysin

noun
het·​ero·​ly·​sin | \ ˌhet-ə-rō-ˈlīs-ᵊn How to pronounce heterolysin (audio) \

Medical Definition of heterolysin

: a hemolysin that is formed in one organism in response to the introduction of the blood of an organism of a different species and has a specific hemolytic action on the blood cells of the introduced kind

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