单词 | rheumic |
释义 | rheumicadj. Chemistry. rheumic acid n. †(a) (J. Henderson's name for) an acid occurring in the stem of garden rhubarb, later identified with oxalic acid (obsolete); (b) an acid derived from rheotannic acid (not identified) (now rare). ΘΚΠ the world > matter > chemistry > organic chemistry > acids obtained from plants or trees > [noun] > miscellaneous others rheumic acid1816 arabic acida1836 rubiacic acid1835 aspartic acid1836 sylvic acid1836 tannic acid1836 oenanthic acid1837 gummic acid1838 retinic acid1838 roccellic acid1838 rubinic acid1838 lobelic acid1840 polychromatic acid1840 rhabarbaric acid1840 roccelline1840 humic1844 sumbulolic acid1844 isatic acid1845 opianic acid1845 parthenic acid1845 polychromic acid1847 styphnic acid1848 metapectic acid1849 tanningenic acid1852 jalapic acid1853 jalapinolic acid1855 sinapic acid1857 amalic acid1863 phycic acid1864 filicic acid1865 isamic acid1865 tannocaffeic acidc1865 tricarballylic acid1865 guaiaretic acid1866 pectous acid1866 phytomelin1866 porphyric acid1866 thujetic acid1868 turpetholic acid1868 viridic acid1868 rheotannic acid1869 arabinic acid1870 frangulic1872 sclerotic acid1876 theobromic acid1878 gynocardic acid1897 chaulmoogric acid1904 1816 J. Henderson in Ann. Philos. 8 249 When the effervescence began, the smell of the rheumic acid was very agreeable, though too strong to be borne for any length of time. 1874 F. A. Flückiger & D. Hanbury Pharmacographia 448 Kubly..has obtained from rhubarb the following constituents:..Rheumic Acid (Rheümsaure), C20H16O9, obtained as a reddish-brown powder, by boiling rheo-tannic acid with a dilute mineral acid, a fermentable sugar being developed at the same time. 1918 A. G. Perkin & A. E. Everest Nat. Org. Colouring Matters xiii. 449 With boiling dilute acids it gives rheic acid (rheumic acid), C20H16O9, and a fermentable sugar. 1960 Titusville (Pa.) Herald 19 May 3/4 There are other parts such as emodin, mucilage, resins, rheumic acid, aporrhetin and others. This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022). < adj.1816 |
随便看 |
|
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。