: 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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“Ionone.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/ionone. Accessed 22 Dec. 2024.
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