Medical Dictionary


noun io·none \ˈī-ə-ˌnōn\

Medical Definition of ionone

  1. :  either of two oily liquid isomeric ketones C13H20O that have a strong odor of violets, are found especially in the essential oil of an Australian shrub (Boronia megastigma) but are usually obtained from citral, and are used especially in perfumes

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