Noun orris has 2 senses
  1. Florentine iris, orris, Iris germanica florentina, Iris florentina - German iris having large white flowers with lavender-tinged falls and a fragrant rhizome
    --1 is a kind of bearded iris
    --1 has members: orrisroot, orris
  2. orrisroot, orris - fragrant rootstock of various irises especially Florentine iris; used in perfumes and medicines
    --2 is a kind of root
    --2 is a member of
     Florentine iris, orris, Iris germanica florentina, Iris florentina
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