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pen·to·san | \ ˈpen-tə-ˌsan 
\
\Definition of pentosan
: any of various polysaccharides that yield only pentoses on hydrolysis and occur widely in plants
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pentosan
nounpen·to·san | \ ˈpent-ə-ˌsan \
\Medical Definition of pentosan
: any of various polysaccharides that yield only pentoses on hydrolysis and are widely distributed in plants
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Time Traveler for pentosan
The first known use of pentosan was in 1892
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