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zy·mo·san | \ ˈzī-mə-ˌsan 
\
\Definition of zymosan
: an insoluble largely polysaccharide fraction of yeast cell walls
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zymosan
nounzy·mo·san | \ ˈzī-mə-ˌsan \
\Medical Definition of zymosan
: an insoluble largely polysaccharide fraction of yeast cell walls
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Time Traveler for zymosan
The first known use of zymosan was in 1943
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