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Definition of coumarin
: a toxic white crystalline lactone C9H6O2 with an odor of new-mown hay found in plants or made synthetically and used especially in perfumery and as a parent compound in anticoagulant agents; also : a derivative of this compound
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Recent Examples of coumarin from the Web
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Both cassia cinnamon and Saigon cinnamon contain coumarin, a natural compound that can harm the liver when taken in large amounts.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'coumarin'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of coumarin
French coumarine, from coumarou tonka bean tree, from Spanish or Portuguese; Spanish cumarú, from Portuguese, from Tupi *kumarú, *kumbarú
Medical Dictionary
coumarin
playMedical Definition of coumarin
: a toxic white crystalline lactone C9H6O2 with an odor of new-mown hay found in plants or made synthetically and used especially in perfumery and as the parent compound in various anticoagulant agents (as warfarin); also : a derivative of this compound
Learn More about coumarin
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Britannica English: Translation of coumarin for Arabic speakers Britannica.com: Encyclopedia article about coumarin
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