strep·​to·​ly·​sin ˌstrep-tə-ˈlī-sᵊn How to pronounce streptolysin (audio)
: an antigenic hemolysin produced by streptococci

Word History

First Known Use

1904, in the meaning defined above

Time Traveler
The first known use of streptolysin was in 1904

Dictionary Entries Near streptolysin

Cite this Entry

“Streptolysin.” Dictionary, Merriam-Webster, Accessed 4 Oct. 2023.

Medical Definition


strep·​to·​ly·​sin ˌstrep-tə-ˈlīs-ᵊn How to pronounce streptolysin (audio)
: any of various antigenic hemolysins produced by streptococci
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