[ ahy-uh-nohn ]
/ ˈaɪ əˌnoʊn /
a light-yellow to colorless, slightly water-soluble liquid that is either one or a mixture of two unsaturated ketones having the formula C13H20O, used chiefly in perfumery.
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Origin of ionone
First recorded in 1890–95; formerly trademark
Words nearby ionone
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for ionone
Ionone, a ketone first prepared by Tiemann, and having when diluted a pronounced violet odour.The Handbook of Soap Manufacture|W. H. Simmons
British Dictionary definitions for ionone
/ (ˈaɪəˌnəʊn) /
a yellowish liquid mixture of two isomers with an odour of violets, extracted from certain plants and used in perfumery
either of these two isomers. Formula: C 13 H 20 O
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012