streptolysin

strep·to·ly·sin

[strep-tuh-lahy-sin]
noun Bacteriology.
a type of hemolysin produced by certain species of streptococcus.

Origin:
1900–05; strepto- (representing generic names which begin with this element, as Streptococcus) + (hemo)lysin

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Based on the Random House Dictionary, © Random House, Inc. 2013.
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American Heritage
Medical Dictionary

streptolysin strep·tol·y·sin (strěp-tŏl'ĭ-sĭn, strěp'tə-lī'sĭn)
n.
A hemolysin produced by streptococci.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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00:10
Streptolysin is always a great word to know.
So is flibbertigibbet. Does it mean:
a scrap or morsel of food left at a meal.
a chattering or flighty, light-headed person.
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