| 单词 | magnesia alba |
| 释义 | > as lemmasmagnesia alba magnesia alba n. [ < post-classical Latin magnesia alba (M. B. Valentini Relatio de Magnesia Alba (1707), or earlier) < magnesia magnesia n. + classical Latin alba, feminine of albus white: see further the etymological note above] = sense 3(a). ΘΚΠ the world > health and disease > healing > medicines or physic > medicines for specific purpose > cleansing or expelling medicines > [noun] > purgative > mineral-based Rochelle salt1593 white magnesia1650 magnesia1755 magnesia alba1756 Seidlitz water1784 Seidlitz powder1815 Rochelle powder1820 saline1875 liquid paraffin1884 Eno1889 parolein1892 liver salt1895 liquid petrolatum1905 Kruschen salts1925 1756 J. Black in Ess. & Observ. (Philos. Soc. Edinb.) II. 157 (title) Experiments upon magnesia alba, quicklime, and some other alcaline substances. 1756 J. Black in Ess. & Observ. (Philos. Soc. Edinb.) II. 157 Hoffmann, in one of his observations, gives the history of a powder called magnesia alba, which had been long used..as a mild and tasteless purgative. 1764 S. Glass tr. G. M. Lancisi in Ess. Magnesia Alba 6 Many useful medicines..have..been prepared from Nitre; but none more elegant or useful than that which has appeared in our time under the name of Magnesia Alba. 1850 J. D. Dana Syst. Mineral. (ed. 3) 213 Hydrodolomite..has the composition of the magnesia alba of the shops. 1938 R. Hum Chem. for Engin. Students xxii. 593 When sodium carbonate is added to a magnesium salt solution, the precipitate formed is a basic carbonate, of composition somewhat variable, according to conditions. It is used commercially, under the name of ‘magnesia alba’, as a cosmetic, tooth powder, silver polish, and for making the covering for steam pipes and boilers. 1946 Thorpe's Dict. Appl. Chem. (ed. 4) VII. 447/1 The commercial preparation known as magnesia alba is a hydrated basic carbonate of slightly varying composition. 2004 Brit. Jrnl. Hist. Sci. 37 390 The surgeon David MacBride built on Black's magnesia alba experiments. < as lemmas |
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