α. 1800s rétinole, 1800s– retinole.
β. 1800s– retinol.
单词 | retinol |
释义 | retinoln.1α. 1800s rétinole, 1800s– retinole. β. 1800s– retinol. Chemistry. Now rare. A yellowish oil obtained by distilling resin and consisting largely of hydrocarbons. ΘΚΠ the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > other hydrocarbons marsh butterc1450 asphaltene1837 petrolene1837 retinol1837 melene1848 butene1851 peucyl1857 nicotyl1860 bog-butter1863 melissene1867 bitumene1868 tolene1868 valylene1868 thallene1872 melissylene1884 allylene1889 dicyclopentadiene1904 kerogen1906 perylene1910 oestrane1933 dodecahedrane1964 prismane1964 1837 London & Edinb. Philos. Mag. 11 405 Rétinole is a new bicarburet of hydrogen, the formula of which is C64H32. 1838 R. D. Thomson Brit. Ann. 330 Retinole. 1857 W. A. Miller Elements Chem.: Org. (1862) 585 Common rosin is thus found to furnish..Terebene, Colophene,..Retinol, Naphthalin. 1903 S. Rideal Disinfection & Preservation Food viii. 235 Retinol is simply the product of distillation of ordinary resin. Its antiseptic properties are feeble. 1989 Merck Index (ed. 11) 1314/2 Rosin Oil. Rosinol; retinol. Obtained by dry distillation of rosin. This entry has been updated (OED Third Edition, March 2010; most recently modified version published online March 2022). retinoln.2 Biochemistry. A yellow carotenoid alcohol that is the most potent form of vitamin A in most vertebrates. Also (more fully retinol2): a closely related compound found in freshwater and migratory (not marine) fish.Formulae: (retinol) C20H29OH; (retinol2) C20H27OH. ΚΠ 1960 Jrnl. Amer. Chem. Soc. 82 5581/1 The pure substance hitherto known as vitamin A1 or axerophthol shall be designated retinol. 1968 A. White et al. Princ. Biochem. (ed. 4) l. 1048 Vitamin A activity in mammals is exhibited by α-, β-, and γ-carotenes, by retinol and retinol2..and by a few other carotenoids. 1976 Nature 4 Mar. 49/2 Vitamin A (retinol) is a nutrient essential for vision, growth, reproduction and proper differentiation of epithelial tissue. 1996 Health Advisor Dec.–Jan. 63/1 The substance retinol (vitamin A) is involved in the development of the baby's limbs. 2003 Woman's Day (N.Y.) 16 Sept. 102/2 You don't have to spend a fortune on an antiaging moisturizer... Check drugstore shelves for products containing glycolic acid or retinol. This entry has been updated (OED Third Edition, March 2010; most recently modified version published online March 2022). < n.11837n.21960 |
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