[vuh-nil-in, van-l-]

noun Chemistry.

a white, crystalline, water-soluble, alcohol-soluble solid, C8H8O3, obtained by extraction from the vanilla bean or prepared synthetically: used chiefly as a flavoring agent and in perfumery.

Also va·nil·line [vuh-nil-in, -een, van-l-in, -een] /vəˈnɪl ɪn, -in, ˈvæn l ɪn, -ˌin/.

Origin of vanillin

First recorded in 1865–70; vanill(a) + -in2
Also called vanillic aldehyde. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for vanillin

Historical Examples of vanillin

British Dictionary definitions for vanillin



a white crystalline aldehyde found in vanilla and many natural balsams and resins; 3-methoxy-4-hydroxybenzaldehyde. It is a by-product of paper manufacture and is used as a flavouring and in perfumes and pharmaceuticals. Formula: (CH 3 O)(OH)C 6 H 3 CHO
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

Word Origin and History for vanillin

substance prepared from fruit of the vanilla plant, 1868, from vanilla + -in (2).

Online Etymology Dictionary, © 2010 Douglas Harper

vanillin in Medicine


[və-nĭlĭn, vănə-lĭn]


A white or yellowish crystalline compound found in vanilla beans and certain balsams and resins and used in flavorings and pharmaceuticals.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.