aesculinesculinn.

Brit.

/ˈɛskjᵿlɪn/,

/ˈiːskjᵿlɪn/, U.S.

/ˈɛskjələn/

Forms:

α. 1800s– aesculine, 1800s– esculine.

β. 1800s– aesculin, 1800s– esculin.

Origin: Either (i) a borrowing from French. Or (ii) a borrowing from Italian. Etymons: French esculine; Italian esculina.

Etymology: < French esculine (1823 in Jrnl. de pharmacie 9 542, in a translation of extracts from the Italian coinage work) or its etymon Italian esculina (apparently found in F. Canzoneri Saggi sul castagno d'India (1823)) < classical Latin aesculus (also esculus ), denoting a species of oak, adopted in scientific Latin as genus name of the horse chestnut ( Linnaeus Species plantarum (1753) I. 344; perhaps < the same Indo-European base as oak n.) + Italian -ina -in suffix¹.

Chemistry.

A crystalline compound present in the bark and other parts of some trees (notably the horse chestnut, Aesculus hippocastanum), and used in tests to identify certain bacteria by means of its fluorescence.Aesculin is a glucoside of aesculetin; formula C₁₅H₁₆O₉.

ΘΚΠ

the world > matter > chemistry > organic chemistry > carbohydrates > sugars > [noun] > glycosides > named > aesculin

aesculin1824

polychrome1838

the world > matter > physics > electromagnetic radiation > light > intensity of light, luminosity > [noun] > fluorescence > substance or exhibiting

paviin1859

fraxin1864

aesculin1868

fluorescein1871

fluorescin1882

fluorescer1904

Day-Glo1944

1824 Chemist 3 Apr. 55/2 By following the means they recommend, he [sc. Canzoneri] obtained a peculiar substance from this fruit, which he has named esculine.

1842 T. Graham Elements Chem. iii. vii. 910 The solution, by exposure to light, acquires a beautiful blue colour, even when the quantity of esculin is very small.

1853 Chem. Gaz. 15 Aug. 302 It has been stated that æsculine is not thrown down by metallic salts.

1868 H. B. Jones & H. Watts Fownes's Man. Elem. Chem. (ed. 10) 678 The aqueous solution of æsculin is highly fluorescent, the reflected light being of a sky-blue colour.

1908 M. Yearsley tr. A. Forel Senses of Insects iv. 59 I added enough ink to the water to make it quite distinctly darker and less transparent than the esculine.

1946 L. J. Tompkins et al. in R. B. Little & W. N. Pastridge Bovine Mastitis iv. 137 Diernhofer had previously shown that broth containing the glucoside esculin was useful in differentiating streptococci found in milk.

2006 Countryman Dec. 83/1 German hospitals have been successfully reducing severe bruises for their patients with the aesculin obtained from conkers, a treatment since provided in Britain.

This entry has been updated (OED Third Edition, December 2011; most recently modified version published online December 2021).

单词	aesculin
释义	aesculinesculinn. Brit. /ˈɛskjᵿlɪn/, /ˈiːskjᵿlɪn/, U.S. /ˈɛskjələn/ Forms: α. 1800s– aesculine, 1800s– esculine. β. 1800s– aesculin, 1800s– esculin. Origin: Either (i) a borrowing from French. Or (ii) a borrowing from Italian. Etymons: French esculine; Italian esculina. Etymology: < French esculine (1823 in Jrnl. de pharmacie 9 542, in a translation of extracts from the Italian coinage work) or its etymon Italian esculina (apparently found in F. Canzoneri Saggi sul castagno d'India (1823)) < classical Latin aesculus (also esculus ), denoting a species of oak, adopted in scientific Latin as genus name of the horse chestnut ( Linnaeus Species plantarum (1753) I. 344; perhaps < the same Indo-European base as oak n.) + Italian -ina -in suffix¹. Chemistry. A crystalline compound present in the bark and other parts of some trees (notably the horse chestnut, Aesculus hippocastanum), and used in tests to identify certain bacteria by means of its fluorescence.Aesculin is a glucoside of aesculetin; formula C₁₅H₁₆O₉. ΘΚΠ the world > matter > chemistry > organic chemistry > carbohydrates > sugars > [noun] > glycosides > named > aesculin aesculin1824 polychrome1838 the world > matter > physics > electromagnetic radiation > light > intensity of light, luminosity > [noun] > fluorescence > substance or exhibiting paviin1859 fraxin1864 aesculin1868 fluorescein1871 fluorescin1882 fluorescer1904 Day-Glo1944 1824 Chemist 3 Apr. 55/2 By following the means they recommend, he [sc. Canzoneri] obtained a peculiar substance from this fruit, which he has named esculine. 1842 T. Graham Elements Chem. iii. vii. 910 The solution, by exposure to light, acquires a beautiful blue colour, even when the quantity of esculin is very small. 1853 Chem. Gaz. 15 Aug. 302 It has been stated that æsculine is not thrown down by metallic salts. 1868 H. B. Jones & H. Watts Fownes's Man. Elem. Chem. (ed. 10) 678 The aqueous solution of æsculin is highly fluorescent, the reflected light being of a sky-blue colour. 1908 M. Yearsley tr. A. Forel Senses of Insects iv. 59 I added enough ink to the water to make it quite distinctly darker and less transparent than the esculine. 1946 L. J. Tompkins et al. in R. B. Little & W. N. Pastridge Bovine Mastitis iv. 137 Diernhofer had previously shown that broth containing the glucoside esculin was useful in differentiating streptococci found in milk. 2006 Countryman Dec. 83/1 German hospitals have been successfully reducing severe bruises for their patients with the aesculin obtained from conkers, a treatment since provided in Britain. This entry has been updated (OED Third Edition, December 2011; most recently modified version published online December 2021). < n.1824
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