ionone

[ahy-uh-nohn]

noun Chemistry.

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.

Origin of ionone

First recorded in 1890–95; formerly trademark

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for ionone

Historical Examples of 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

ionone

noun

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