† polychroiten.

Forms: 1800s polychroite, 1800s polycroite.

Origin: A borrowing from French. Etymon: French polychroïte.

Etymology: < French polychroïte (Bouillon-Lagrange & Vogel 1811, in Ann. de chim. 80 203) < ancient Greek πολύχροος (see polychroism n.) + French -ïte -ite suffix¹. N.E.D. (1907) gives the pronunciation as (pǫ·likroˌəit) /ˈpɒlɪkrəʊaɪt/.

Chemistry. Obsolete.

The yellow colouring matter of saffron, which undergoes various changes of colour when acted on by different reagents. Cf. safranine n. a.

ΘΚΠ

the world > matter > colour > named colours > yellow or yellowness > colouring matter > [noun] > of natural bodies

polychroite1815

quercitrin1833

anthoxanthin1836

xanthophyll1838

xanthein1857

xanthin1857

phylloxanthin1858

safranine1868

phycoxanthin1873

ooxanthine1875

phytochrome1893

1815 W. Henry Elements Exper. Chem. (ed. 7) II. i. xx. 254 Polychroite. This name has been given, by Bouillon La Grange and Vogel, to the extract of saffron prepared with alcohol.

1829 J. Togno & E. Durand tr. H. Milne-Edwards & P. Vavasseur Man. Materia Medica vii. 266 The substance..denominated Polychroite, is but a compound of colouring matter and volatile oil.

1873 J. Attfield Chemistry (ed. 5) 415 Saffron.., the dried stigma and part of the style of Crocus sativus, yields saffranin or polychroite, a yellow principle.

This entry has been updated (OED Third Edition, September 2006; most recently modified version published online December 2020).

单词	polychroite
释义	† polychroiten. Forms: 1800s polychroite, 1800s polycroite. Origin: A borrowing from French. Etymon: French polychroïte. Etymology: < French polychroïte (Bouillon-Lagrange & Vogel 1811, in Ann. de chim. 80 203) < ancient Greek πολύχροος (see polychroism n.) + French -ïte -ite suffix¹. N.E.D. (1907) gives the pronunciation as (pǫ·likroˌəit) /ˈpɒlɪkrəʊaɪt/. Chemistry. Obsolete. The yellow colouring matter of saffron, which undergoes various changes of colour when acted on by different reagents. Cf. safranine n. a. ΘΚΠ the world > matter > colour > named colours > yellow or yellowness > colouring matter > [noun] > of natural bodies polychroite1815 quercitrin1833 anthoxanthin1836 xanthophyll1838 xanthein1857 xanthin1857 phylloxanthin1858 safranine1868 phycoxanthin1873 ooxanthine1875 phytochrome1893 1815 W. Henry Elements Exper. Chem. (ed. 7) II. i. xx. 254 Polychroite. This name has been given, by Bouillon La Grange and Vogel, to the extract of saffron prepared with alcohol. 1829 J. Togno & E. Durand tr. H. Milne-Edwards & P. Vavasseur Man. Materia Medica vii. 266 The substance..denominated Polychroite, is but a compound of colouring matter and volatile oil. 1873 J. Attfield Chemistry (ed. 5) 415 Saffron.., the dried stigma and part of the style of Crocus sativus, yields saffranin or polychroite, a yellow principle. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online December 2020). < n.1815
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