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单词 orcein
释义

orceinn.

Brit. /ˈɔːsiːɪn/, U.S. /ˈɔrsiᵻn/
Forms: 1800s– orcein, 1800s– orceine.
Origin: A borrowing from French. Etymon: French orcéine.
Etymology: < French orcéine (P. J. Robiquet 1835, in Ann. de chim. et de physique 58 325) < orc- (in orcine orcin n.) + -éine -ein suffix.
Chemistry.
A red dye that is a constituent of orchil, consists of a number of substituted phenoxazine derivatives of orcinol, and can be obtained from orcinol by reaction with ammonia and oxygen.
ΘΚΠ
the world > matter > chemistry > organic chemistry > organic dyes > [noun] > colouring red
alizarin1827
santalin1833
orcein1838
purpurin1839
indin1841
isatin1845
roseine1859
aurin1869
Turkey red oil1879
phenosafranine1883
rhodamine1888
azaleine1889
phloxine1890
pyronin1895
primuline red1900
the world > matter > colour > named colours > red or redness > red colouring matter > [noun] > dyes and dyestuffs
madderOE
grain1335
alkanet1343
Brazilc1386
crop-maddera1399
red-scarletc1400
alcanna?a1425
lac?c1425
madder root?c1450
incarnationa1475
jarecork1483
orchil1483
mull1507
orcanet1548
Bristol-red1551
red sanders1553
cochineal1582
safflower1583
chay1588
Pernambuco1595
red sanderswood1598
redwood1634
peach woodc1638
scarlet1653
mesteque1667
bow-dye1676
sylvester1697
corkir1703
gamene1703
orchilla1703
crap1721
saffranon1731
kino1788
Turkey red1789
lizary1791
granilla1812
munjeet1813
rubiate1835
orcein1838
purpurin1839
ruby wood1843
sassafrid1852
aal1853
pink salt1853
magenta1860
fuchsine1865
paeonin1865
safranine1868
corallin1873
marina1874
Magdala red1875
alizarin1878
eosin1879
Turkey red oil1879
roccelline1880
ponceau1885
amarant1888
phloxine1890
hypernic1897
Turkish red1900
Lithol red1930
1838 T. Thomson Chem. Org. Bodies 404 To the substance into which orcin is converted by the joint action of oxygen, ammonia, and water, Robiquet has given the name of orcein.
1876 J. Harley Royle's Man. Materia Med. (ed. 6) 363 The blue colouring matter called orcein, (C7H7NO3), which is the essential constituent of these dyes.
1920 Science 27 Aug. 207/1 The dyes, orcein, alizarin, purpurin.
1946 Proc. Royal Soc. B. 133 315 Smear preparations were also made and stained with acetic lacmoid and orcein.
1985 C. R. Leeson et al. Textbk. Histol. (ed. 5) iii. 105/1 Elastic fibers stain erratically with eosin, but can be stained selectively with orcein (brown) and resorcin-fuchsin (dark blue-purple).
This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022).
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n.1838
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