单词 | meconoisin |
释义 | meconoisinn. Chemistry. Now rare. A neutral crystalline compound, C8H10O2, present in opium. ΚΠ 1878 T. Smith & H. Smith in Pharm. Jrnl. & Trans. 8 981/1 The filtered liquid gives a crystallization of meconine, and the mother liquor, when concentrated, and upon being set aside for a time, yields beautiful leaf-like crystalline masses of the body to which we have given the name of Meconoiosine. 1887 T. L. Brunton Text-bk. Pharmacol. (ed. 3) §5. xxxi. 846 The neutral substances [in opium] are meconin and meconiasin. 1890 J. S. Billings National Med. Dict. II. 122 Meconoisin, C8H10O2. A crystallizable neutral principle discovered in opium by T. and H. Smith (1878). 1949 Thorpe's Dict. Appl. Chem. (ed. 4) IX. 115/1 Meconoisin..was isolated by T. and H. Smith in the mother-liquors from the preparation of meconine. This entry has been updated (OED Third Edition, June 2001; most recently modified version published online March 2022). < |
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