Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Ionone" Definition
noun
A colorless to yellowish liquid, C13H20O, having a strong odor of violets and used in perfumes.
Source: American Heritage Dictionary
Frequently with distinguishing Greek letter. Each of a number of fragrant unsaturated isomeric ketones which are products of the breakdown of carotenoids and occur naturally in some essential oils; specifically (more fully β-ionone) a compound that arises as a product of ψ-ionone in the synthesis of vitamin A.
Source: Oxford Dictionary
In full ψ-ionone. An acyclic compound isomeric with α- and β-ionone which can be cyclized to form those compounds and is used in the synthesis of vitamin A.
Source: Oxford Dictionary