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Noun: orris  or-us or ór-is [N. Amer], ó-ris [Brit]
  1. German iris having large white flowers with lavender-tinged falls and a fragrant rhizome
    - Florentine iris, Iris germanica florentina, Iris florentina
     
  2. Fragrant rootstock of various irises especially Florentine iris; used in perfumes and medicines
    - orrisroot

Derived forms: orrises

Type of: bearded iris, root

Encyclopedia: Orris