Dictionary

orrisroot

noun or·ris·root \-ˌrüt, -ˌrt\

Definition of ORRISROOT

:  the fragrant rootstock of any of three European irises (Iris florentina, I. germanica, and I. pallida) used especially in perfumery
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First Known Use of ORRISROOT

1598
Medical Dictionary

orrisroot

noun or·ris·root \ˈr-əs-ˌrüt, ˈär-əs-, -ˌrt\

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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