coumarin

or cu·ma·rin

[ koo-muh-rin ]

/ ˈku mə rɪn /

noun

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.

Origin of coumarin

1820–30; <French coumarine, equivalent to coumar(ou) tonka-bean tree (<Spanish cumarú<Portuguese <Tupi cumaru) + -ine-in²

Words nearby coumarin

coulometry, coulrophobia, Coulter, Coulter pine, Coumadin, coumarin, coumarone, coumarone resin, council, council area, Council Bluffs

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for coumarin

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
Coumarin, an extract from tonka beans, may be used in making the extract.
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.
Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 1|Various
These researches incidentally solved the constitution of coumarin, the odoriferous principle of woodruff.
Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 4|Various

British Dictionary definitions for coumarin

coumarin

cumarin

/ (ˈkuːmərɪn) /

noun

a white vanilla-scented crystalline ester, used in perfumes and flavourings and as an anticoagulant. Formula: C 9 H 6 O 2

Derived forms of coumarin

coumaric or cumaric, adjective

Word Origin for coumarin

C19: from French coumarine, from coumarou tonka-bean tree, from Spanish cumarú, from Tupi

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

coumarin

[ kōō′mər-ĭn ]

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.

单词	coumarin
释义	coumarin or cu·ma·rin [ koo-muh-rin ] / ˈku mə rɪn / noun 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. Origin of coumarin 1820–30; <French coumarine, equivalent to coumar(ou) tonka-bean tree (<Spanish cumarú<Portuguese <Tupi cumaru) + -ine-in² Words nearby coumarin coulometry, coulrophobia, Coulter, Coulter pine, Coumadin, coumarin, coumarone, coumarone resin, council, council area, Council Bluffs Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for coumarin 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 Coumarin, an extract from tonka beans, may be used in making the extract. 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. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 1\|Various These researches incidentally solved the constitution of coumarin, the odoriferous principle of woodruff. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 4\|Various British Dictionary definitions for coumarin coumarin cumarin / (ˈkuːmərɪn) / noun a white vanilla-scented crystalline ester, used in perfumes and flavourings and as an anticoagulant. Formula: C 9 H 6 O 2 Derived forms of coumarin coumaric or cumaric, adjective Word Origin for coumarin C19: from French coumarine, from coumarou tonka-bean tree, from Spanish cumarú, from Tupi 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 coumarin [ kōō′mər-ĭn ] 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.
随便看	omophagia omophorion omotic omov omphacite omphale omphalectomy omphalelcosis omphalic omphalitis omphalo- omphaloangiopagous twins omphalocele omphaloenteric omphalomesenteric omphalomesenteric duct omphalophlebitis omphalorrhagia omphalorrhea omphalorrhexis omphalos omphalosite omphaloskepsis omphalospinous omphalotomy