IPA: //aɪˈoʊnoʊn//
KK: /aɪˈoʊnoʊn/
A clear liquid that can be colorless or yellowish, known for its strong violet scent, and is commonly used in making perfumes.
The perfumer added ionone to the fragrance to give it a floral note.
Ionone is derived from 'ion' (from Greek 'ion', meaning going) and 'one' (a suffix used in chemistry to denote a ketone). The word refers to a specific type of ketone that is derived from the ionone structure, which is related to the scent of violets.
Think of 'ion' meaning 'going' and 'one' indicating a type of chemical compound — this helps you remember that ionone is a compound related to a specific scent.