phytophthora
noun
phy·toph·tho·ra
| \ fīˈtäfthərə\
Definition of phytophthora
1
capitalized
: a genus of destructive parasitic fungi (family Pythiaceae) having conidia that usually act as sporangia especially under moist cool conditions and sporangiophores that are simple or branched — see late blight, pythiacystis
2 plural -s
a
: any fungus of the genus Phytophthora
b
: a disease (as late blight) caused by such a fungus
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