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Peronospora
noun
Per·o·nos·po·ra
\ˌperəˈnäspərə\
Definition of Peronospora
: a genus (the type of the family Peronosporaceae) of destructive downy mildews having the sporangiophores dichotomously branched and with pointed tips — see onion mildew tobacco blue mold
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Origin and Etymology of peronospora
New Latin, from perono- + -spora
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