单词 | alginate |
释义 | alginaten. Chemistry. Any of the salts of alginic acid, occurring naturally in algin or made from it by an extraction process, some of which are widely used in processed foods and other manufactured products, often as thickeners or gelling agents. Also (as a mass noun): alginic acid or any of its salts. ΚΠ 1884 E. C. C. Stanford in Jrnl. Soc. Arts 6 June 728/1 With either salt the alginate is thrown down instead of rising to the surface of the liquid. 1902 Brit. Med. Jrnl. 22 Mar. 723/1 The whole of the iron alginate would probably be decomposed in [the stomach]. 1940 J. B. Speakman in Textile Manufacturer 66 464/2 Since sodium alginate dissolves in water to give solutions of high viscosity, whereas calcium alginate is insoluble, filaments are readily obtained. 1950 R. M. Smock & A. M. Neubert Apples & Apple Products xii. 336 A water solution of alginate is added to the juice and a reagent such as lime, sulfuric acid, or phosphoric acid is then added. 1990 European Jrnl. Orthodontics 12 381/1 Following bracket placement high quality alginate impressions of the upper arch were taken and cast immediately. 1997 Esquire Mar. 76/2 Krochak made molds of my upper and lower teeth, using a pink, gooey alginate that hardens in a minute or so. 2002 Time 5 Aug. 71/4 Sterile gauze pads..treated with the clotting agent calcium alginate, are designed to stop bleeding twice as fast as ordinary gauze. This entry has been updated (OED Third Edition, September 2012; most recently modified version published online December 2021). < n.1884 |
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