| 释义 |
Definition of coumarin in English: coumarinnoun ˈkuːmərɪnˈkum(ə)rən mass nounChemistry 1A vanilla-scented compound found in many plants, formerly used for flavouring food. 〔化〕香豆素；氧杂萘邻酮 A bicyclic lactone; chemical formula: C₉H₆O₂ Example sentencesExamples - The spectrum of coumarin in uncomplexed DNA is shown as the solid curve.
- In this assay a series of sample mixtures with a fixed protein concentration and increasing coumarin concentrations are injected.
- The benefit of benzopyrones, such as coumarin or flavonoids, remains unproved.
- Plants make coumarin from an amino acid, phenylalanine.
- We modeled the modified complex by replacing the guanine in the native structure with coumarin and allowing rotation about the glycosidic bond.
- 1.1count noun Any derivative of coumarin.
香豆素的任何一种衍生物 Example sentencesExamples - They smell like sandalwood, jasmine and honeyed-clove, with touches of coumarin and vanilla.
- Herbal medications that may increase the risk of bleeding if used concurrently with ginkgo include the following: feverfew, garlic, ginseng, dong quai, red clover, and other natural coumarins.
- Because of the presence of coumarins in some clover species, including Trifolium pratense, tests of clotting factors in future trials may be prudent.
- The most widely used oral anticoagulants are coumarin derivatives.
- And sweet clovers aren't the only greens using coumarins.
OriginMid 19th century: from French coumarine, from coumarou, via Portuguese and Spanish from Tupi cumarú 'tonka bean'. Definition of coumarin in US English: coumarinnounˈkum(ə)rənˈko͞om(ə)rən Chemistry 1A vanilla-scented compound found in many plants, formerly used for flavoring food. 〔化〕香豆素；氧杂萘邻酮 A bicyclic lactone; chemical formula: C₉H₆O₂ Example sentencesExamples - We modeled the modified complex by replacing the guanine in the native structure with coumarin and allowing rotation about the glycosidic bond.
- The spectrum of coumarin in uncomplexed DNA is shown as the solid curve.
- The benefit of benzopyrones, such as coumarin or flavonoids, remains unproved.
- Plants make coumarin from an amino acid, phenylalanine.
- In this assay a series of sample mixtures with a fixed protein concentration and increasing coumarin concentrations are injected.
- 1.1 Any derivative of coumarin.
香豆素的任何一种衍生物 Example sentencesExamples - They smell like sandalwood, jasmine and honeyed-clove, with touches of coumarin and vanilla.
- Herbal medications that may increase the risk of bleeding if used concurrently with ginkgo include the following: feverfew, garlic, ginseng, dong quai, red clover, and other natural coumarins.
- And sweet clovers aren't the only greens using coumarins.
- Because of the presence of coumarins in some clover species, including Trifolium pratense, tests of clotting factors in future trials may be prudent.
- The most widely used oral anticoagulants are coumarin derivatives.
OriginMid 19th century: from French coumarine, from coumarou, via Portuguese and Spanish from Tupi cumarú ‘tonka bean’. |