a fragrant crystalline substance, C9H6O2, obtained from the tonka bean, sweet clover, and certain other plants or prepared synthetically, used chiefly in soaps and perfumery.
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How to use coumarin in a sentence
If coumarin is present, a brown, precipitate will form, and if stirred with a rod it will collect in dark green flecks.Detection of the Common Food Adulterants | Edwin M. Bruce
Good hay should come out green and with the odour of coumarin—to which is due the scent of new-mown hay.
We may here include various coumarin and benzo-γ-pyrone derivatives.
coumarin, an extract from tonka beans, may be used in making the extract.Detection of the Common Food Adulterants | Edwin M. Bruce
coumarin, a white crystalline product found in Tonka beans, and prepared synthetically from salicylic acid.The Handbook of Soap Manufacture | W. H. Simmons
British Dictionary definitions for coumarin
a white vanilla-scented crystalline ester, used in perfumes and flavourings and as an anticoagulant. Formula: C 9 H 6 O 2
- coumaric or cumaric, adjective
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
Scientific definitions for coumarin
A fragrant crystalline compound extracted from several plants, such as tonka beans and sweet clover, or produced synthetically. Coumarin and its derivatives are widely used in perfumes, as anticoagulants, and as rodenticides. Chemical formula: C9H6O2.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.