单词 | pseudocubic |
释义 | > as lemmaspseudocubic pseudocubic adj. Brit. /ˌs(j)uːdə(ʊ)ˈkjuːbɪk/ , U.S. /ˌsudoʊˈkjubɪk/ [after French pseudocubique (E. Mallard 1876, in Comptes rendus hebd. de l'Acad. des Sci. 82 1063)] Crystallography apparently cubic in morphology or crystal structure but not actually so; spec. designating a composite crystal in which the crystal structure simulates the symmetry of a single crystal of the cubic system but actually has lower symmetry.ΚΠ 1895 N. Story-Maskelyne Crystallogr. vi. §166 Complicated structures in which twelve orthorhombic crystals are united into a single pseudo-cubic combination. 1929 Amer. Mineralogist 14 50 (heading) Pseudo-cubic quartz crystals from Artesia, New Mexico. 1968 I. Kostov Mineral. 117 Shandite has a distorted spinel structure, the nickel atoms being arranged along the pseudocubic diagonals. 1990 C. Pellant Rocks, Minerals & Fossils 94 Chabazite... Rhombohedral crystals with pseudocubic appearance. < as lemmas |
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