orrisroot

noun
or·​ris·​root | \ ˈȯr-əs-ˌrüt, ˈär-əs-, -ˌru̇t How to pronounce orrisroot (audio) \

Medical Definition of orrisroot

: the fragrant rootstock of any of three European irises (Iris pallida, I. florentina, and I. germanica) used in pulverized form in perfumery and pharmacology

called also orris

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