rose bengaln.

Brit.

/ˌrəʊz bɛnˈɡɔːl/,

/ˌrəʊz bɛŋˈɡɔːl/, U.S.

/ˌroʊz ˌbɛnˈɡɑl/,

/ˌroʊz ˌbɛŋˈɡɑl/

Forms:

α. 1800s– rose bengale.

β. 1800s– rose bengal.

Also with capital initial(s).

Origin: A borrowing from French. Etymon: French rose bengale.

Etymology: < French rose bengale (1861 or earlier as colour term; 1820 or earlier as name of a variety of rose) < rose rose n.¹ + the name of Bengale (English Bengal : see Bengal n.); in β. forms showing assimilation of the second element to the English form of the place name.Compare similarly English Bengal rose, recorded from the early 19th cent. onwards denoting a variety of rose.

Chemistry.

A bluish-red dye related to fluorescein, used esp. as a biological stain.Rose bengal is 4,5,6,7-tetrachloro-2′,4′,5′,7′-tetraiodofluorescein (or the sodium or potassium salt of this), C₂₀H₄O₅Cl₄I₄.

ΘΚΠ

the world > life > biology > laboratory analysis > material > [noun] > staining material

osmium tetroxide1869

picrocarmine1872

rose bengal1878

stain1880

erythrosin1884

Gram stain1884

vesuvin1885

Nile blue1888

pyronin1895

Janus green1898

counterstain1899

Nissl stain1899

Leishman stain1904

trypan blue1911

quinacrine mustard1957

the world > matter > colour > colouring > colouring matter > [noun] > dye > types of dyes

pallOE

sanders1329

raddlea1350

nutgallc1450

bark1565

logwood1581

sanders-wood1615

catechu1682

cate1698

cachou1708

valonia1722

India wood1742

cutch1759

alizari1769

standard1808

iron buff1836

colorine1838

acid dye1840

garancin1843

French tub1846

suranji1848

morindin1849

water blue1851

union dye1852

indigo-carmine1855

hernant1858

pigment colour1862

rosaniline1862

rose aniline1862

bezetta1863

bottom1863

acid colour1873

paraphenylenediamine1873

indigo-extract1874

tin-pulp1874

phthalein1875

sightening1875

chrome1876

rose bengal1878

azo-colours1879

azine1887

basic dye1892

chromotrope1893

garance1896

ice colour1896

xylochrome1898

cross-dye1901

indanthrene1901

Lithol1903

vat dye1903

thioindigo1906

para red1907

vat colour1912

vat dyestuff1914

indanthrone1920

ionamine1922

Soledon1924

Solochrome1924

Solacet1938

indigoid1939

thioindigoid1943

fluorol1956

Procion1956

1878 Chem. News 10 May 196/1 Rose Bengale.—This is a new dye of a beautiful blue-red colour, a substitution product of fluorescein.

1906 Jrnl. Exper. Med. 8 265 Exophthalmus has been noted in rats injected with Rose bengale.

1945 E. J. Perry et al. Artific. Insemination Farm Animals v. 65 Place a drop of undiluted semen on a slide, add a drop of stain such as methylene blue or Rose Bengal.

2005 Horse June 75/2 A second dye, called rose bengal, will often be applied to test the integrity of the rear film over the eye.

This is a new entry (OED Third Edition, November 2010; most recently modified version published online March 2022).

单词	rose bengal
释义	rose bengaln. Brit. /ˌrəʊz bɛnˈɡɔːl/, /ˌrəʊz bɛŋˈɡɔːl/, U.S. /ˌroʊz ˌbɛnˈɡɑl/, /ˌroʊz ˌbɛŋˈɡɑl/ Forms: α. 1800s– rose bengale. β. 1800s– rose bengal. Also with capital initial(s). Origin: A borrowing from French. Etymon: French rose bengale. Etymology: < French rose bengale (1861 or earlier as colour term; 1820 or earlier as name of a variety of rose) < rose rose n.¹ + the name of Bengale (English Bengal : see Bengal n.); in β. forms showing assimilation of the second element to the English form of the place name.Compare similarly English Bengal rose, recorded from the early 19th cent. onwards denoting a variety of rose. Chemistry. A bluish-red dye related to fluorescein, used esp. as a biological stain.Rose bengal is 4,5,6,7-tetrachloro-2′,4′,5′,7′-tetraiodofluorescein (or the sodium or potassium salt of this), C₂₀H₄O₅Cl₄I₄. ΘΚΠ the world > life > biology > laboratory analysis > material > [noun] > staining material osmium tetroxide1869 picrocarmine1872 rose bengal1878 stain1880 erythrosin1884 Gram stain1884 vesuvin1885 Nile blue1888 pyronin1895 Janus green1898 counterstain1899 Nissl stain1899 Leishman stain1904 trypan blue1911 quinacrine mustard1957 the world > matter > colour > colouring > colouring matter > [noun] > dye > types of dyes pallOE sanders1329 raddlea1350 nutgallc1450 bark1565 logwood1581 sanders-wood1615 catechu1682 cate1698 cachou1708 valonia1722 India wood1742 cutch1759 alizari1769 standard1808 iron buff1836 colorine1838 acid dye1840 garancin1843 French tub1846 suranji1848 morindin1849 water blue1851 union dye1852 indigo-carmine1855 hernant1858 pigment colour1862 rosaniline1862 rose aniline1862 bezetta1863 bottom1863 acid colour1873 paraphenylenediamine1873 indigo-extract1874 tin-pulp1874 phthalein1875 sightening1875 chrome1876 rose bengal1878 azo-colours1879 azine1887 basic dye1892 chromotrope1893 garance1896 ice colour1896 xylochrome1898 cross-dye1901 indanthrene1901 Lithol1903 vat dye1903 thioindigo1906 para red1907 vat colour1912 vat dyestuff1914 indanthrone1920 ionamine1922 Soledon1924 Solochrome1924 Solacet1938 indigoid1939 thioindigoid1943 fluorol1956 Procion1956 1878 Chem. News 10 May 196/1 Rose Bengale.—This is a new dye of a beautiful blue-red colour, a substitution product of fluorescein. 1906 Jrnl. Exper. Med. 8 265 Exophthalmus has been noted in rats injected with Rose bengale. 1945 E. J. Perry et al. Artific. Insemination Farm Animals v. 65 Place a drop of undiluted semen on a slide, add a drop of stain such as methylene blue or Rose Bengal. 2005 Horse June 75/2 A second dye, called rose bengal, will often be applied to test the integrity of the rear film over the eye. This is a new entry (OED Third Edition, November 2010; most recently modified version published online March 2022). < n.1878
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