'Peronospora' definitions:

Definition of 'Peronospora'

From: WordNet
noun
Genus of destructive downy mildews [syn: Peronospora, genus Peronospora]

Definition of 'Peronospora'

From: GCIDE
  • Peronospora \Peronospora\ prop. n. A genus of destructive downy mildews.
  • Syn: genus Peronospora. [WordNet 1.5]