1. (noun)Florentine iris, orris, Iris germanica florentina, Iris florentina German iris having large white flowers with lavender-tinged falls and a fragrant rhizome Synonyms: orrisroot, orris
2. (noun)orrisroot, orris fragrant rootstock of various irises especially Florentine iris; used in perfumes and medicines Synonyms: orrisroot, orris