meconinen.

Brit.

/ˈmiːkənɪn/,

/ˈmiːkəniːn/, U.S.

/ˈmɛkənən/,

/ˈmɛkəˌnin/,

/ˈmikənən/,

/ˈmikəˌnin/

Forms: 1800s– meconin, 1800s– meconine.

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

Etymology: < French méconine (J. P. Couerbe 1832, in Ann. de chim. et de physique 49 45) < ancient Greek μήκων poppy (see meconium n.) + -ine -ine suffix⁵.

Chemistry.

A crystalline aromatic lactone, C₁₀H₁₀O₄, that is one of the constituents of opium, and is also found in the root of goldenseal, Hydrastis canadensis; dimethoxyphthalide.

ΚΠ

1833 London & Edinb. Philos. Mag. 2 156 Meconine was discovered in opium, by M. Couerbe in 1830.

1874 A. B. Garrod & E. B. Baxter Essentials Materia Medica (ed. 4) 202 Meconine or Opianyl acts on man as a mild hypnotic.

1911 Encycl. Brit. XX. 135/1 Reduction [of narcotine] gives meconine.

1949 Thorpe's Dict. Appl. Chem. (ed. 4) IX. 115/1 Meconine crystallises from water in prisms at 102°.

1963 Brit. Pharmaceut. Codex 545 Meconin, meconoidin, and opionin are neutral substances, present [in opium] in small proportions only.

1992 Acta Medica Romana 29 227 The meconine is a minor opium component which may be still present at trace level in illicit heroin samples, and the identification of this substance gives additional information useful for comparative purposes.

This entry has been updated (OED Third Edition, June 2001; most recently modified version published online March 2022).

单词	meconine
释义	meconinen. Brit. /ˈmiːkənɪn/, /ˈmiːkəniːn/, U.S. /ˈmɛkənən/, /ˈmɛkəˌnin/, /ˈmikənən/, /ˈmikəˌnin/ Forms: 1800s– meconin, 1800s– meconine. Origin: A borrowing from French. Etymon: French méconine. Etymology: < French méconine (J. P. Couerbe 1832, in Ann. de chim. et de physique 49 45) < ancient Greek μήκων poppy (see meconium n.) + -ine -ine suffix⁵. Chemistry. A crystalline aromatic lactone, C₁₀H₁₀O₄, that is one of the constituents of opium, and is also found in the root of goldenseal, Hydrastis canadensis; dimethoxyphthalide. ΚΠ 1833 London & Edinb. Philos. Mag. 2 156 Meconine was discovered in opium, by M. Couerbe in 1830. 1874 A. B. Garrod & E. B. Baxter Essentials Materia Medica (ed. 4) 202 Meconine or Opianyl acts on man as a mild hypnotic. 1911 Encycl. Brit. XX. 135/1 Reduction [of narcotine] gives meconine. 1949 Thorpe's Dict. Appl. Chem. (ed. 4) IX. 115/1 Meconine crystallises from water in prisms at 102°. 1963 Brit. Pharmaceut. Codex 545 Meconin, meconoidin, and opionin are neutral substances, present [in opium] in small proportions only. 1992 Acta Medica Romana 29 227 The meconine is a minor opium component which may be still present at trace level in illicit heroin samples, and the identification of this substance gives additional information useful for comparative purposes. This entry has been updated (OED Third Edition, June 2001; most recently modified version published online March 2022). < n.1833
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