单词 | semi-vitreous |
释义 | semi-vitreousadj. Partially vitreous. ΘΚΠ society > occupation and work > materials > derived or manufactured material > glass and glass-like materials > [adjective] glassy1398 vitrial1605 vitreous1646 vitrean1656 vitrine1656 hyalinea1661 vitrid1777 vitrous1779 semi-vitreous1783 the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [adjective] > volcanic > lava > vitreous obsidian1601 semi-vitreous1813 perlitic1879 pyroxenitic1914 1783 J. Wedgwood in Philos. Trans. 1782 (Royal Soc.) 72 317 By a very strong fire, they are changed to a porcelain or semi-vitreous texture. 1807 T. Thomson Syst. Chem. (ed. 3) II. 339 Semi-vitreous oxide of lead. 1813 R. Bakewell Introd. Geol. xii. 317 Semivitreous lava. 1890 Q. Jrnl. Geol. Soc. 46 i. 74 Finely vesicular rhyolitic rock with compact semivitreous green-grey base. Derivatives ˌsemi-vitrifiˈcation n. ΘΚΠ the world > matter > chemistry > chemical reactions or processes > [noun] > chemical reactions or processes (named) > vitrification > partial semi-vitrification1791 society > occupation and work > industry > manufacturing processes > glass-making > [noun] > turning substance into glass or glassy material > partially semi-vitrification1791 1791 E. Darwin Bot. Garden: Pt. I Notes 52 The semivitrification, which constitutes porcelain. 1794 R. Kirwan Elements Mineral. (ed. 2) I. 396 That which produces enamels and semi-vitrifications. 1889 C. T. Davis Pract. Treat. Manuf. Bricks (ed. 2) 78 A degree of heat when semi-vitrification and shrinkage take place. semi-ˈvitrified adj. ΘΚΠ society > occupation and work > materials > derived or manufactured material > glass and glass-like materials > [adjective] > converted into glass > partially semi-vitrified1753 1753 Chambers's Cycl. Suppl. Slacken,..a term used by the miners to express a spungy and semivitrified substance. 1844 Proc. Amer. Philos. Soc. 1841–3 2 4 The semi~vitrified quartz rock of the western part of the Hoosae mountain. This entry has not yet been fully updated (first published 1911; most recently modified version published online June 2020). < adj.1753 |
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