water glassとは 意味・読み方・使い方

名詞

water glass (countable and uncountable, plural water glasses)

1. A drinking vessel intended or used for water.

   She asked the server to refill her water glass.

2. (inorganic chemistry) Any of various water-soluble silicate compounds, especially when occurring in dissolved, jelly-like form.

   Synonyms: liquid glass, sodium silicate, soluble glass

   • 1993, John Banville, Ghosts:

     No; what I felt was a sort of glazed numbness, as if I were suspended in some thin, transparent stuff, like one of the eggs my mother used to preserve in waterglass when I was a child.

3. A water gauge for a steam boiler.
4. An instrument consisting of an open box or tube with a glass bottom, used for examining objects in the water, as upon the sea bottom in shallow places.
5. A water clock.

アナグラム

• glass water

語源

From water +‎ glass.

名詞

waterglass (usually uncountable, plural waterglasses)

1. Sodium silicate.
   • 1895, Thomas Norton, The Contributions of Chemistry to the Methods of Preventing and Extinguishing Conflagration, page 15:

     a cheaper process for fire-proofing canvas, consisting of the deposition in the fiber of a double sodium and lead silicate. Boiling solutions of basic lead acetate and of waterglass were used.

   • 1916, H.C. Standage, Cement: Pastes, Glues, and Gums, page 23:

     Waterglass (Silicate of Soda) Cement.
     By combining waterglass with cement or quicklime a double silicate, hard as stone and resisting chemical agents, is formed in a short time.

   • 2010 October 7, Jeffrey C. Petermann, Athar Saeed, Michael I. Hammond, Aklali-Activated Geopolymers: A Literature Review, (US) Air Force Research Laboratory, page 4:

     A fly ash material used in a study (by Xie and Xi) contained a high fraction of reactive oxides which reacted significantly with a waterglass (Na₂SiO₃) activator, leading to a high strength within a short time and under relatively lower temperatures