quinoidinen.

Brit.

/kwᵻˈnɔɪdiːn/, U.S.

/kwəˈnɔɪˌdin/

Forms: 1800s– chinoidin, 1800s– chinoidine Brit.

/kɪˈnɔɪdiːn/, U.S.

/kɪˈnɔɪdin/, 1800s quinoidina, 1800s– quinoidin, 1800s– quinoidine.

Origin: Formed within English, by derivation; probably modelled on a French lexical item. Etymons: quina n., -oid suffix, -ine suffix⁵.

Etymology: < quina n. + -oid suffix + -ine suffix⁵, probably after French chinoïdine (1830, in Jrnl. de pharm. 7 45), itself after German Chinioidin (F. Sertürner 1829, in Jrnl. der pract. Heilkunde 68 98); with the -i- in the German form compare quinia n.

Chemistry. Now rare.

The residue obtained when quinine and other useful substances are extracted from the mixture of alkaloids found in cinchona bark.In the original method of preparation, quinoidine was a brownish-black resinous substance.

ΚΠ

1836 Rec. Gen. Sci. 4 147 Geiger has described a simple method of separating these principles from the alkaline mass which does not crystallize with acids, and which Serturner termed Quinoidin.

1853 Pasteur in Pharm. Jrnl. & Trans. 13 375 Quinoidine..is always a product of transformation of the cinchona alkalies.

1874 H. C. Wood Treat. Therapeutics 70 Under the name of chinoidine is sold by the manufacturers the black, intensely bitter residue left upon the evaporation of the mother-liquor after the crystallization of the alkaloids.

1913 T. A. Henry Plant Alkaloids iv. 174 Diconquinine..is the chief constituent of the black extractive matter known as ‘quinoidine’.

1942 Lancet 8 Aug. 155/2 Cinchona contains four crystallisable alkaloids..as well as amorphous alkaloidal material termed quinoidine.

This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022).

单词	quinoidine
释义	quinoidinen. Brit. /kwᵻˈnɔɪdiːn/, U.S. /kwəˈnɔɪˌdin/ Forms: 1800s– chinoidin, 1800s– chinoidine Brit. /kɪˈnɔɪdiːn/, U.S. /kɪˈnɔɪdin/, 1800s quinoidina, 1800s– quinoidin, 1800s– quinoidine. Origin: Formed within English, by derivation; probably modelled on a French lexical item. Etymons: quina n., -oid suffix, -ine suffix⁵. Etymology: < quina n. + -oid suffix + -ine suffix⁵, probably after French chinoïdine (1830, in Jrnl. de pharm. 7 45), itself after German Chinioidin (F. Sertürner 1829, in Jrnl. der pract. Heilkunde 68 98); with the -i- in the German form compare quinia n. Chemistry. Now rare. The residue obtained when quinine and other useful substances are extracted from the mixture of alkaloids found in cinchona bark.In the original method of preparation, quinoidine was a brownish-black resinous substance. ΚΠ 1836 Rec. Gen. Sci. 4 147 Geiger has described a simple method of separating these principles from the alkaline mass which does not crystallize with acids, and which Serturner termed Quinoidin. 1853 Pasteur in Pharm. Jrnl. & Trans. 13 375 Quinoidine..is always a product of transformation of the cinchona alkalies. 1874 H. C. Wood Treat. Therapeutics 70 Under the name of chinoidine is sold by the manufacturers the black, intensely bitter residue left upon the evaporation of the mother-liquor after the crystallization of the alkaloids. 1913 T. A. Henry Plant Alkaloids iv. 174 Diconquinine..is the chief constituent of the black extractive matter known as ‘quinoidine’. 1942 Lancet 8 Aug. 155/2 Cinchona contains four crystallisable alkaloids..as well as amorphous alkaloidal material termed quinoidine. This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022). < n.1836
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