pythium
noun
pyth·i·um
| \ ˈpithēəm\
Definition of pythium
1
capitalized
: a genus of destructive root-parasitic fungi (family Pythiaceae) having filamentous sporangia, smooth-walled spherical oogonia, and stalked antheridia and including forms (as P. debaryanum) that cause damping-off
2
plural -s
: any fungus of the genus Pythium
pythium root necrosis
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