Peronosporales

plural noun

Per·​o·​nos·​po·​ra·​les

ˌperəˌnäspəˈrā(ˌ)lēz

: an order comprising chiefly parasitic lower fungi (subclass Oomycetes) that have equally biflagellate zoospores and conidia which either germinate directly or act as sporangia and contain the families Albuginaceae, Peronosporaceae, and Pythiaceae

Word History

Etymology

New Latin, from Peronospora + -ales

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