tanninn.

Brit.

/ˈtanɪn/, U.S.

/ˈtænən/

Etymology: < French tanin, ‘le principe tannant’ (1798 Proust in Ann. de Chimie XXV. 225), < tan tan n.¹ + -in suffix¹.

Chemistry.

Any member of a group of astringent vegetable substances, the tannins, which possess the property of combining with animal hide and converting it into leather. The first member of this group isolated and so named was the tannin of gall-nuts, subsequently also called tannic adj. acid; and to this the names tannin and tannic acid are still often specifically applied. But the discovery that the astringent principles of other vegetable substances were not chemically identical with that of gall-nuts made it needful to distinguish the various tannins. The original or ‘ordinary tannin’ became distinctively gallo-tannin n., other members of the group being named caffetannin, catechutannin, kinotannin, quercitannin, etc. (cf. tannic adj.), or particularized as oak-bark tannin, alder, beech, hop, horse-chestnut, larch, rhatany tannin, according to their source.

ΘΚΠ

the world > matter > chemistry > organic chemistry > organic compounds > [noun] > tannins

tannin1802

tannogelatin1836

society > occupation and work > materials > derived or manufactured material > leather > leather-making materials > [noun] > tannin

tannin1802

gallo-tannin1891

1802 Jrnl. Nat. Philos. July 198 Abridgment of a Memoir of Mr. Proust on Tanin and its Species.

1804 Philos. Trans. (Royal Soc.) 94 210 The effects which it produced on gelatin, also demonstrate the presence of tannin.

1836 W. T. Brande Man. Chem. (ed. 4) 928 (note) The tannin of catechu is said to contain less oxygen than that of galls.

1838 T. Thomson Chem. Org. Bodies 109 Pure tannin is colourless.

1867 S. W. Baker Nile Tributaries (1872) viii. 123 It is rich in a hard gum, which appears to be almost pure tannin.

1895 M. M. P. Muir & H. F. Morley Watts' Dict. Chem. V. 632/1 The origin of tannin in plants has given rise to much debate.

Compounds

attributive and in other combinations, as tannin drop, tannin pill, tannin treatment; tannin-like adj.; tannin-glycerol n. glycerin of tannic acid. tannin-sac n. a vessel in plants which secretes tannin.

ΘΚΠ

the world > plants > part of plant > cell or aggregate tissue > [noun] > cell > types of > producing particular substance

milk-cell1884

tannin-sac1884

1868 A. B. Garrod Essentials Materia Medica (ed. 3) 320 Tannin Lozenges.

1875 A. W. Bennett & W. T. T. Dyer tr. J. von Sachs Text-bk. Bot. 628 Tannin-like compounds are formed in particular cells.

1879 St. George's Hosp. Rep. 9 800 It soon passed off again with rest and the opium and digitalis and tannin pills.

1884 F. O. Bower & D. H. Scott tr. H. A. de Bary Compar. Anat. Phanerogams & Ferns 153 We may here introduce these organs as Tannin-sacs. They occur as elongated sacs, especially near to the vascular bundles, in the parenchyma of the stem and petiole of many Ferns (Marsilia, Polypodiaceæ, Cyatheaceæ, Marattiaceæ, &c.).

1898 P. Manson Trop. Dis. vi. 121 The tannin treatment..might also be tried.

Derivatives

ˈtannined adj. /-ɪnd/ charged or impregnated with tannin.

ΘΚΠ

the world > food and drink > drink > tea > [adjective] > qualities of tea

milkless1816

slushy1839

miserable1842

overdrawn1847

raw1881

mealy1892

stewy1895

tannined1898

potty1901

stiff1904

stewed1908

metallic1909

1898 E. F. Spence in Westm. Gaz. 6 Sept. 3/3 For breakfast we had undrinkable coffee, which we exchanged for tannined tea.

tanninˈgenic adj. in tanningenic acid, a synonym of catechuic adj. acid and catechin n.

ΘΚΠ

the world > matter > chemistry > organic chemistry > acids obtained from plants or trees > [noun] > miscellaneous others

rheumic acid1816

arabic acida1836

rubiacic acid1835

aspartic acid1836

sylvic acid1836

tannic acid1836

oenanthic acid1837

gummic acid1838

retinic acid1838

roccellic acid1838

rubinic acid1838

lobelic acid1840

polychromatic acid1840

rhabarbaric acid1840

roccelline1840

humic1844

sumbulolic acid1844

isatic acid1845

opianic acid1845

parthenic acid1845

polychromic acid1847

styphnic acid1848

metapectic acid1849

tanningenic acid1852

jalapic acid1853

jalapinolic acid1855

sinapic acid1857

amalic acid1863

phycic acid1864

filicic acid1865

isamic acid1865

tannocaffeic acidc1865

tricarballylic acid1865

guaiaretic acid1866

pectous acid1866

phytomelin1866

porphyric acid1866

thujetic acid1868

turpetholic acid1868

viridic acid1868

rheotannic acid1869

arabinic acid1870

frangulic1872

sclerotic acid1876

theobromic acid1878

gynocardic acid1897

chaulmoogric acid1904

1852 C. Morfit Art of Tanning, Currying, & Leather-dressing (1853) 69 Catechuine or tanningenic acid.

This entry has not yet been fully updated (first published 1910; most recently modified version published online March 2022).

单词	tannin
释义	tanninn. Brit. /ˈtanɪn/, U.S. /ˈtænən/ Etymology: < French tanin, ‘le principe tannant’ (1798 Proust in Ann. de Chimie XXV. 225), < tan tan n.¹ + -in suffix¹. Chemistry. Any member of a group of astringent vegetable substances, the tannins, which possess the property of combining with animal hide and converting it into leather. The first member of this group isolated and so named was the tannin of gall-nuts, subsequently also called tannic adj. acid; and to this the names tannin and tannic acid are still often specifically applied. But the discovery that the astringent principles of other vegetable substances were not chemically identical with that of gall-nuts made it needful to distinguish the various tannins. The original or ‘ordinary tannin’ became distinctively gallo-tannin n., other members of the group being named caffetannin, catechutannin, kinotannin, quercitannin, etc. (cf. tannic adj.), or particularized as oak-bark tannin, alder, beech, hop, horse-chestnut, larch, rhatany tannin, according to their source. ΘΚΠ the world > matter > chemistry > organic chemistry > organic compounds > [noun] > tannins tannin1802 tannogelatin1836 society > occupation and work > materials > derived or manufactured material > leather > leather-making materials > [noun] > tannin tannin1802 gallo-tannin1891 1802 Jrnl. Nat. Philos. July 198 Abridgment of a Memoir of Mr. Proust on Tanin and its Species. 1804 Philos. Trans. (Royal Soc.) 94 210 The effects which it produced on gelatin, also demonstrate the presence of tannin. 1836 W. T. Brande Man. Chem. (ed. 4) 928 (note) The tannin of catechu is said to contain less oxygen than that of galls. 1838 T. Thomson Chem. Org. Bodies 109 Pure tannin is colourless. 1867 S. W. Baker Nile Tributaries (1872) viii. 123 It is rich in a hard gum, which appears to be almost pure tannin. 1895 M. M. P. Muir & H. F. Morley Watts' Dict. Chem. V. 632/1 The origin of tannin in plants has given rise to much debate. Compounds attributive and in other combinations, as tannin drop, tannin pill, tannin treatment; tannin-like adj.; tannin-glycerol n. glycerin of tannic acid. tannin-sac n. a vessel in plants which secretes tannin. ΘΚΠ the world > plants > part of plant > cell or aggregate tissue > [noun] > cell > types of > producing particular substance milk-cell1884 tannin-sac1884 1868 A. B. Garrod Essentials Materia Medica (ed. 3) 320 Tannin Lozenges. 1875 A. W. Bennett & W. T. T. Dyer tr. J. von Sachs Text-bk. Bot. 628 Tannin-like compounds are formed in particular cells. 1879 St. George's Hosp. Rep. 9 800 It soon passed off again with rest and the opium and digitalis and tannin pills. 1884 F. O. Bower & D. H. Scott tr. H. A. de Bary Compar. Anat. Phanerogams & Ferns 153 We may here introduce these organs as Tannin-sacs. They occur as elongated sacs, especially near to the vascular bundles, in the parenchyma of the stem and petiole of many Ferns (Marsilia, Polypodiaceæ, Cyatheaceæ, Marattiaceæ, &c.). 1898 P. Manson Trop. Dis. vi. 121 The tannin treatment..might also be tried. Derivatives ˈtannined adj. /-ɪnd/ charged or impregnated with tannin. ΘΚΠ the world > food and drink > drink > tea > [adjective] > qualities of tea milkless1816 slushy1839 miserable1842 overdrawn1847 raw1881 mealy1892 stewy1895 tannined1898 potty1901 stiff1904 stewed1908 metallic1909 1898 E. F. Spence in Westm. Gaz. 6 Sept. 3/3 For breakfast we had undrinkable coffee, which we exchanged for tannined tea. tanninˈgenic adj. in tanningenic acid, a synonym of catechuic adj. acid and catechin n. ΘΚΠ the world > matter > chemistry > organic chemistry > acids obtained from plants or trees > [noun] > miscellaneous others rheumic acid1816 arabic acida1836 rubiacic acid1835 aspartic acid1836 sylvic acid1836 tannic acid1836 oenanthic acid1837 gummic acid1838 retinic acid1838 roccellic acid1838 rubinic acid1838 lobelic acid1840 polychromatic acid1840 rhabarbaric acid1840 roccelline1840 humic1844 sumbulolic acid1844 isatic acid1845 opianic acid1845 parthenic acid1845 polychromic acid1847 styphnic acid1848 metapectic acid1849 tanningenic acid1852 jalapic acid1853 jalapinolic acid1855 sinapic acid1857 amalic acid1863 phycic acid1864 filicic acid1865 isamic acid1865 tannocaffeic acidc1865 tricarballylic acid1865 guaiaretic acid1866 pectous acid1866 phytomelin1866 porphyric acid1866 thujetic acid1868 turpetholic acid1868 viridic acid1868 rheotannic acid1869 arabinic acid1870 frangulic1872 sclerotic acid1876 theobromic acid1878 gynocardic acid1897 chaulmoogric acid1904 1852 C. Morfit Art of Tanning, Currying, & Leather-dressing (1853) 69 Catechuine or tanningenic acid. This entry has not yet been fully updated (first published 1910; most recently modified version published online March 2022). < n.1802
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