Toxicodendronn.

/ˌtɒksɪkəʊˈdɛndrɒn/

Etymology: modern Latin (Tournefort, 1700, in sense a), < Greek τοξικόν (see toxicum n.) + δένδρον tree.

Botany.

(a) A former genus, now reckoned as a species of Rhus or sumac ( R. Toxicodendron), a North American shrub, also called poison-ivy (see poison-nut n. (a) at poison n. Compounds 2b). (b) A synonym of Hyænanche, a South African genus of euphorbiaceous trees or shrubs with poisonous fruit, used for killing noxious animals, whence the local names wolveboon (i.e. Wolf's-bane) and hyena-poison.

ΘΚΠ

the world > plants > particular plants > plants perceived as weeds or harmful plants > poisonous or harmful plants > [noun] > poison ivy

poison-weed1624

poison vine1709

Toxicodendron1722

poison oak1739

poison ivy1782

ivy1788

mercury1792

1722 W. Sherard in Philos. Trans. 1720–21 (Royal Soc.) 31 147 The Poyson-Tree... Tis a species of Toxicodendron, tho' not nam'd by Dr. Tournefort in his Institutions.

1755 Gentleman's Mag. Sept. 395/1 Experiments made on staining of linen with the juice of Toxicodendron.

1758 J. Ellis in Philos. Trans. 1757 (Royal Soc.) 50 445 He still insists on it, that these two Toxicodendrons are the same.

1801 G. Mason Suppl. to Johnson's Dict. Toxicodendron, a North-American plant.

1888 Nicholson's Dict. Gard. IV. 63 Toxicodendron Syn. Hyænanche.

Derivatives

ˌtoxicoˈdendric adj. Chemistry applied to an acid derived from Rhus Toxicodendron and other species, subsequently found to be identical with acetic acid.

ΚΠ

1865 J. M. Maisch in Proc. Amer. Pharmaceut. Assoc. 172 A new organic acid, for which I propose the name of Toxicodendric acid.

1877 L. A. Duhring Pract. Treat. Dis. Skin 325 The poison is an exceedingly volatile acid,—toxicodendric acid.

ˌtoxicoˈdendrol n. [-ol suffix 1] Chemistry a non-volatile oil constituting the poisonous principle of Rhus Toxicodendron and other species.

ΘΚΠ

the world > matter > chemistry > organic chemistry > poisons > [noun] > others

oxalic acid1788

nicotine1817

alkarsin1838

tetanine1857

muscarine1869

cinnoline1883

saprine1887

isocyanic acid1891

mescaline1896

toxicodendrol1898

tube curare1898

tulipine1900

fluoroacetamide1909

thalassin1909

yperite1917

protoanemonin1920

Lewisite1921

organochloride1966

1898 U.S. Dept. Agric., Bot. Bulletin No. 20. 37 The poison is in reality a non-volatile oil. In January, 1895, Dr. Franz Pfaff..announced this discovery. The oil has since been purified and named toxicodendrol.

This entry has not yet been fully updated (first published 1913; most recently modified version published online June 2020).

单词	toxicodendron
释义	Toxicodendronn. /ˌtɒksɪkəʊˈdɛndrɒn/ Etymology: modern Latin (Tournefort, 1700, in sense a), < Greek τοξικόν (see toxicum n.) + δένδρον tree. Botany. (a) A former genus, now reckoned as a species of Rhus or sumac ( R. Toxicodendron), a North American shrub, also called poison-ivy (see poison-nut n. (a) at poison n. Compounds 2b). (b) A synonym of Hyænanche, a South African genus of euphorbiaceous trees or shrubs with poisonous fruit, used for killing noxious animals, whence the local names wolveboon (i.e. Wolf's-bane) and hyena-poison. ΘΚΠ the world > plants > particular plants > plants perceived as weeds or harmful plants > poisonous or harmful plants > [noun] > poison ivy poison-weed1624 poison vine1709 Toxicodendron1722 poison oak1739 poison ivy1782 ivy1788 mercury1792 1722 W. Sherard in Philos. Trans. 1720–21 (Royal Soc.) 31 147 The Poyson-Tree... Tis a species of Toxicodendron, tho' not nam'd by Dr. Tournefort in his Institutions. 1755 Gentleman's Mag. Sept. 395/1 Experiments made on staining of linen with the juice of Toxicodendron. 1758 J. Ellis in Philos. Trans. 1757 (Royal Soc.) 50 445 He still insists on it, that these two Toxicodendrons are the same. 1801 G. Mason Suppl. to Johnson's Dict. Toxicodendron, a North-American plant. 1888 Nicholson's Dict. Gard. IV. 63 Toxicodendron Syn. Hyænanche. Derivatives ˌtoxicoˈdendric adj. Chemistry applied to an acid derived from Rhus Toxicodendron and other species, subsequently found to be identical with acetic acid. ΚΠ 1865 J. M. Maisch in Proc. Amer. Pharmaceut. Assoc. 172 A new organic acid, for which I propose the name of Toxicodendric acid. 1877 L. A. Duhring Pract. Treat. Dis. Skin 325 The poison is an exceedingly volatile acid,—toxicodendric acid. ˌtoxicoˈdendrol n. [-ol suffix 1] Chemistry a non-volatile oil constituting the poisonous principle of Rhus Toxicodendron and other species. ΘΚΠ the world > matter > chemistry > organic chemistry > poisons > [noun] > others oxalic acid1788 nicotine1817 alkarsin1838 tetanine1857 muscarine1869 cinnoline1883 saprine1887 isocyanic acid1891 mescaline1896 toxicodendrol1898 tube curare1898 tulipine1900 fluoroacetamide1909 thalassin1909 yperite1917 protoanemonin1920 Lewisite1921 organochloride1966 1898 U.S. Dept. Agric., Bot. Bulletin No. 20. 37 The poison is in reality a non-volatile oil. In January, 1895, Dr. Franz Pfaff..announced this discovery. The oil has since been purified and named toxicodendrol. This entry has not yet been fully updated (first published 1913; most recently modified version published online June 2020). < n.1722
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