orrisroot oil
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orris oil — noun also orrisroot oil : a yellowish semisolid fragrant essential oil containing free myristic acid and irones as its principal components, obtained from the roots of the Florentine iris, and used chiefly as a flavoring material and in perfumes … Useful english dictionary
irone — ˈīˌrōn, ̷ ̷ˈ ̷ ̷ noun ( s) Etymology: International Scientific Vocabulary iris + one; originally formed as German iron : any of several oily liquid isomeric ketones C14H22O or a mixture of some of them that have a strong odor of violet and… … Useful english dictionary