1) Crystalline susbstance
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https://www.crosswordclues.com/clue/coumarin
Coumarin (n; 2H-chromen-2-one) is a fragrant organic chemical compound in the benzopyrone chemical class, which is a colorless crystalline substance in its standard state. It is a natural substance found in many plants. The name comes from a French term for the tonka bean, coumarou, one of the sources from which coumarin was first isolated as a na...
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http://en.wikipedia.org/wiki/Coumarin
• (n.) The concrete essence of the tonka bean, the fruit of Dipterix (formerly Coumarouna) odorata and consisting essentially of coumarin proper, which is a white crystalline substance, C9H6O2, of vanilla-like odor, regarded as an anhydride of coumaric acid, and used in flavoring. Coumarin in also made artificially.Coumarin: words in the defin...
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http://thinkexist.com/dictionary/meaning/coumarin/
an organic compound having the characteristic odour of new-mown hay, obtainable from the tonka tree (native to Guyana) or by chemical synthesis. It ... [3 related articles]
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http://www.britannica.com/eb/a-z/c/149
A substance used to make drugs that prevent and treat blood clots in blood vessels and treat certain heart conditions. Coumarin is taken from certain plants and can also be made in the laboratory. It is a type of anticoagulant.
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http://www.cancer.gov/dictionary?expand=C
<drug> O hydroxycinnamic acid. Pleasant smelling compound found in many plants and released on wilting (probably a major component of the smell of fresh hay). Has anticoagulant activity by competing with Vitamin K. ... (18 Nov 1997) ...
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http://www.encyclo.co.uk/local/20973
(koo´mә-rin) a principle extracted from the tonka bean, from which several anticoagulants are derived that inhibit hepatic synthesis of vitamin K–dependent coagulation factors. any of these derivatives.
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http://www.encyclo.co.uk/local/21001
A substance that deters feeding by certain insect pests Derived from glucosides in the plant, it is formed when tissues are disrupted by the feeding insect.
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http://www.encyclo.co.uk/visitor-contributions.php
(= O-hydroxycinnamic acid) Pleasant-smelling compound found in many plants and released on wilting (probably a major component of the smell of fresh hay). Has anticoagulant activity by competing with Vitamin K. Coumarin derivatives have anti-inflammatory and antimetastatic properties and inhibit xanthine oxidase and the production of 5-HETE by neutrophils and macrophages. Various derivatives have these activities including esculentin, esculin (6,7-dihydroxycoumarin 6-O-D-glucoside), fraxin, umbelliferone (7-hydroxy coumarin) and scopoletin (6-methoxy-7-hydroxy-coumarin).
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http://www.encyclo.co.uk/visitor-contributions.php
Cou'ma·rin (kō'mȧ*rĭn)
noun [ French, from
coumarou , a tree of Guiana.]
(Chemistry) The concrete essence of the tonka bean, the fruit of
Dipterix (formerly Coumarouna) odorata and consisting essentially of coumarin proper, which is a white crystalline substance...
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http://www.encyclo.co.uk/webster/C/170
Type: Term Pronunciation: kū′mă-rin Definitions: 1. A general descriptive term applied to anticoagulants and other drugs derived from dicumarol, a component of the Tonka bean. 2. A fragrant neutral principle obtained from the Tonka bean, Dypterix odorata, and made synthetically from salicylic aldehyde; it is used to disguise unpleas...
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http://www.medilexicon.com/medicaldictionary.php?t=20933
Coumarin is a vegetable proximate principle, obtained from the Dipterix odordta or Tonka bean, sweet woodruff, sweet-scented vernal grass, melilot, etc. It has a pleasant aromatic odour, and a burning taste. It is used in perfumery, in medicine, and to give flavour to certain varieties of Swiss cheese.
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http://www.probertencyclopaedia.com/browse/AC1.HTM
a fragrant crystalline substance, CHO, obtained from the tonka bean, sweet clover, and certain other plants or prepared synthetically, used chiefly in soaps and perfumery.
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https://www.infoplease.com/dictionary/coumarin
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