coumarin

noun
cou·​ma·​rin | \ˈkü-mə-rən \

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

Examples of coumarin in a Sentence

Recent Examples on the Web

Galium odoratum owes its sweet scent to the odiferous agent coumarin. Earl Nickel, SFChronicle.com, "Sweet Woodruff makes an excellent ground cover in shade," 8 June 2018 Cassia can contain relatively high concentrations of coumarin, a plant compound that can damage the liver. Sandee Lamotte, CNN, "Cinnamon: Pantry staple -- and medical powerhouse?," 8 Mar. 2018 Cassia sticks, which look like a thick layer of rolled bark, also contained 18 times more coumarin than Ceylon sticks, which have thin layers. Sandee Lamotte, CNN, "Cinnamon: Pantry staple -- and medical powerhouse?," 8 Mar. 2018 Both cassia cinnamon and Saigon cinnamon contain coumarin, a natural compound that can harm the liver when taken in large amounts. Teresa Graedon, The Seattle Times, "More news on blood sugar: Ceylon cinnamon can help," 21 May 2017

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.

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First Known Use of coumarin

1830, in the meaning defined above

History and Etymology for coumarin

French coumarine, from coumarou tonka bean tree, from Spanish or Portuguese; Spanish cumarú, from Portuguese, from Tupi *kumarú, *kumbarú

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Time Traveler for coumarin

The first known use of coumarin was in 1830

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More Definitions for coumarin

coumarin

noun
cou·​ma·​rin | \ˈkü-mə-rən \

Medical 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

More from Merriam-Webster on coumarin

Britannica English: Translation of coumarin for Arabic Speakers

Britannica.com: Encyclopedia article about coumarin

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