单词 | galenoid |
释义 | galenoidadj.n. A. adj. Resembling galena. ΘΚΠ the world > the earth > minerals > ore > [adjective] > lead ore pottern1612 galenic1828 galenical1828 galenoid1884 the world > the earth > minerals > types of mineral > sulphides and related minerals > [adjective] > galena galenic1828 galenical1828 galenoid1884 1884 Athenæum 26 Apr. 541/1 Depositing..a lustrous galenoid coating by the decomposition of an alkaline solution of lead tartrate with sulphur urea. B. n. Crystallography. (See quot. 1882) [The form occurs most frequently in galena, whence the name.] ΘΚΠ the world > matter > chemistry > crystallography (general) > crystal (general) > specific crystal forms > [noun] tripyramid1828 trisoctahedron1837 fluoroid1850 sphenoid1855 discalenohedron1872 prism1878 tetrakis-hexahedron1878 galenoid1882 macroprism1883 semi-form1895 tetartohedron1895 tetrakisdodecahedron1895 trichite1900 1882 A. H. Green Geol. for Students: Physical Geol. (ed. 3) ii. 45 The complete form is bounded by 3 x 8 = 24 equal and similar isosceles triangles; it is called..the Trigonal Trisoctahedron, or the Galenoid. This entry has not yet been fully updated (first published 1898; most recently modified version published online September 2019). < adj.n.1882 |
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