streptolysin definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Any of several hemolysins derived from some strains of streptococci.
streptolysin - Medical Definition
A hemolysin produced by streptococci.