rhusn.

Brit.

/rʌs/,

/rʊs/,

/ruːs/, U.S.

/rəs/,

/rʊs/,

/rus/

Origin: A borrowing from Latin. Etymon: Latin rhūs.

Etymology: < classical Latin rhūs sumac < ancient Greek ῥοῦς , of uncertain origin; perhaps < the base of ῥεῖν to flow (see rheid n.), on account of its juice.

Originally: the sumac, Rhus coriaria, of southern Europe. In later use: any of numerous small trees, shrubs, and climbers constituting the genus Rhus (family Anacardiaceae), which are characterized by milky, often irritant, latex and which include many allergenic plants as well as the sumac and the staghorn sumac, R. hirta (formerly R. typhina), grown as an ornamental. Also (in form Rhus): the genus itself.Poison ivy, poison oak, and poison sumac are sometimes placed in the genus Toxicodendron, and many other species have been moved to other genera, e.g. Cotinus.Valid publication of the genus name: Linnaeus Species plantarum (1753) I. 265.

ΘΚΠ

the world > plants > particular plants > trees and shrubs > tree or shrub groups > sumacs > [noun]

buck's-horna1450

rhus?1541

sumac1548

Venice sumac1597

poisonwood1671

poison tree1676

swamp sumac1722

urushi1727

stag-horn1753

Venetian sumac1755

poison ash1757

ipoh1779

poison sumac1785

ailanthus tree1789

Japan varnish1789

vinegar-plant1797

mountain sumac1813

poison dogwood1814

upas1814

karee1815

fustet1821

taaibos1821

poison elder1822

varnish sumac1822

Japan lacquer1835

tree of heaven1845

anacard1847

smoke plant1856

tanners' sumac1858

swamp dogwood1859

smoke-tree1860

wax-tree1866

wig-sumac1867

wig-tree1867

burnwood1874

vinegar-tree1874

mountain manchineel1884

valley of death tree1888

sugar-bush1900

smoke bush1902

?1541 R. Copland Guy de Chauliac's Questyonary Cyrurgyens sig. Hij The pyth of Rhus, y^t is symac.

1673 N. Grew Let. 11 Dec. in H. Oldenburg Corr. (1975) X. 394 Ye Milk of our English Rhus well dried, and fired only at a Candle, will burn wth a very bright and durable flame, like pitch or tarr, or turpentin itself.

1753 Chambers's Cycl. Suppl. App. Stag's horn-tree, a name sometimes given to the rhus, or sumach.

1815 A. Plumptre tr. H. Lichtenstein Trav. S. Afr. II. xliv. 223 Mimosas,..willows, and karree bushes. Among the latter the colonists include several sorts of rhus.

1857 A. Gray First Lessons Bot. (1866) 34 By these rootlets..the Ivy of Europe, and our Poison Rhus,—here called Poison Ivy,—fasten themselves firmly to walls.

1883 Harper's Mag. Jan. 194/1 Vast quantities of poisonous plants (especially rhus).

1905 C. S. Sargent Man. Trees N. Amer. 604 Rhus is widely distributed, with more than one hundred species, in the extra-tropical regions of the northern and southern hemispheres.

1927 Scribner's Mag. Apr. 373/2 We have not only the Virginian creeper but.., the trumpet-creeper, moon-seed,..climbing rhus (poison ivy),..and the wild grapes.., to give that entrancing character to the fenceways and copses.

1974 Country Life 21 Mar. 627/3 Purple rhus makes a telling background for striped silvery grasses.

2007 Sunday Age (Melbourne) (Nexis) 15 Apr. m21 A brilliant alternative for the rhus tree, which may cause allergic reactions in some people, pistacia develops almost iridescent shades of orange to red-orange in autumn.

Compounds

rhus poisoning n. U.S. Medicine the severe dermatitis caused by contact with poison oak, poison ivy, or poison sumac.

ΚΠ

1861 U.S. Jrnl. Homœopathy 2 671 Grindelia, or Donia, as an antidote for Rhus poisoning.

1915 W. S. Mills Pract. Med. 538 Rhus Poisoning. Synonym: Dermatitis Venenata... This is an inflammation of the skin caused by contact with the rhus plant.

1981 Jrnl. Amer. Acad. Dermatol. 5 7/1 At one time, the application of solutions of iron salts was used in the treatment of Rhus poisoning.

This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022).

单词	rhus
释义	rhusn. Brit. /rʌs/, /rʊs/, /ruːs/, U.S. /rəs/, /rʊs/, /rus/ Origin: A borrowing from Latin. Etymon: Latin rhūs. Etymology: < classical Latin rhūs sumac < ancient Greek ῥοῦς , of uncertain origin; perhaps < the base of ῥεῖν to flow (see rheid n.), on account of its juice. Originally: the sumac, Rhus coriaria, of southern Europe. In later use: any of numerous small trees, shrubs, and climbers constituting the genus Rhus (family Anacardiaceae), which are characterized by milky, often irritant, latex and which include many allergenic plants as well as the sumac and the staghorn sumac, R. hirta (formerly R. typhina), grown as an ornamental. Also (in form Rhus): the genus itself.Poison ivy, poison oak, and poison sumac are sometimes placed in the genus Toxicodendron, and many other species have been moved to other genera, e.g. Cotinus.Valid publication of the genus name: Linnaeus Species plantarum (1753) I. 265. ΘΚΠ the world > plants > particular plants > trees and shrubs > tree or shrub groups > sumacs > [noun] buck's-horna1450 rhus?1541 sumac1548 Venice sumac1597 poisonwood1671 poison tree1676 swamp sumac1722 urushi1727 stag-horn1753 Venetian sumac1755 poison ash1757 ipoh1779 poison sumac1785 ailanthus tree1789 Japan varnish1789 vinegar-plant1797 mountain sumac1813 poison dogwood1814 upas1814 karee1815 fustet1821 taaibos1821 poison elder1822 varnish sumac1822 Japan lacquer1835 tree of heaven1845 anacard1847 smoke plant1856 tanners' sumac1858 swamp dogwood1859 smoke-tree1860 wax-tree1866 wig-sumac1867 wig-tree1867 burnwood1874 vinegar-tree1874 mountain manchineel1884 valley of death tree1888 sugar-bush1900 smoke bush1902 ?1541 R. Copland Guy de Chauliac's Questyonary Cyrurgyens sig. Hij The pyth of Rhus, y^t is symac. 1673 N. Grew Let. 11 Dec. in H. Oldenburg Corr. (1975) X. 394 Ye Milk of our English Rhus well dried, and fired only at a Candle, will burn wth a very bright and durable flame, like pitch or tarr, or turpentin itself. 1753 Chambers's Cycl. Suppl. App. Stag's horn-tree, a name sometimes given to the rhus, or sumach. 1815 A. Plumptre tr. H. Lichtenstein Trav. S. Afr. II. xliv. 223 Mimosas,..willows, and karree bushes. Among the latter the colonists include several sorts of rhus. 1857 A. Gray First Lessons Bot. (1866) 34 By these rootlets..the Ivy of Europe, and our Poison Rhus,—here called Poison Ivy,—fasten themselves firmly to walls. 1883 Harper's Mag. Jan. 194/1 Vast quantities of poisonous plants (especially rhus). 1905 C. S. Sargent Man. Trees N. Amer. 604 Rhus is widely distributed, with more than one hundred species, in the extra-tropical regions of the northern and southern hemispheres. 1927 Scribner's Mag. Apr. 373/2 We have not only the Virginian creeper but.., the trumpet-creeper, moon-seed,..climbing rhus (poison ivy),..and the wild grapes.., to give that entrancing character to the fenceways and copses. 1974 Country Life 21 Mar. 627/3 Purple rhus makes a telling background for striped silvery grasses. 2007 Sunday Age (Melbourne) (Nexis) 15 Apr. m21 A brilliant alternative for the rhus tree, which may cause allergic reactions in some people, pistacia develops almost iridescent shades of orange to red-orange in autumn. Compounds rhus poisoning n. U.S. Medicine the severe dermatitis caused by contact with poison oak, poison ivy, or poison sumac. ΚΠ 1861 U.S. Jrnl. Homœopathy 2 671 Grindelia, or Donia, as an antidote for Rhus poisoning. 1915 W. S. Mills Pract. Med. 538 Rhus Poisoning. Synonym: Dermatitis Venenata... This is an inflammation of the skin caused by contact with the rhus plant. 1981 Jrnl. Amer. Acad. Dermatol. 5 7/1 At one time, the application of solutions of iron salts was used in the treatment of Rhus poisoning. This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022). < n.?1541
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