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2025-07-24

“merohedral”的英英意思

单词 merohedral
释义 merohedral, a. Cryst.|mɛrəʊˈhiːdrəl|
[f. mero-1 + Gr. ἕδρα seat, base + -al1.]
Of a crystal: Having less than the full number of faces admitted by the type of symmetry to which it belongs. So meroˈhedric a. in the same sense (Webster Suppl. 1902); meroˈhedrism, the property of being merohedral.
1888Teall Brit. Petrogr. 438 Merohedrism, a crystallographic term embracing both hemihedrism and tetartohedrism.1895Story-Maskelyne Crystallogr. §137 The term merohedral will be reserved for certain cases in which a defalcation is met with in the faces of a crystal out of accord with any fixed law of symmetry; though sometimes such a merohedral crystal simulates the mode of grouping of a crystal belonging to a different type of symmetry from its own.1899W. J. Lewis Crystallogr. 149 The forms of certain classes were regarded as merohedral divisions of a more symmetrical form.Ibid. 259 The views underlying the ideas of merohedrism lead to inconsistencies.
“merohedral”的英英意思

 

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