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strep·to·ly·sin | \ ˌstrep-tə-ˈlī-sᵊn 
\
\Definition of streptolysin
: an antigenic hemolysin produced by streptococci
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streptolysin
nounstrep·to·ly·sin | \ ˌstrep-tə-ˈlīs-ᵊn \
\Medical Definition of streptolysin
: any of various antigenic hemolysins produced by streptococci
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Time Traveler for streptolysin
The first known use of streptolysin was in 1904
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