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单词 pleochroitic
释义

pleochroiticadj.

Brit. /ˌpliːə(ʊ)krəʊˈɪtɪk/, U.S. /ˌpliəˌkroʊˈɪdɪk/, /ˌpliəkrəˈwɪdɪk/
Origin: Formed within English, by compounding. Etymons: pleochroism n., dichroitic adj.
Etymology: < pleochro- (in pleochroism n.) + -itic (in dichroitic adj.). Compare earlier pleochroic adj., pleochromatic adj., pleochroous adj.
Crystallography and Mineralogy.
= pleochroic adj.
ΘΚΠ
the world > matter > colour > variegation > iridescence > [adjective] > pleochroic
pleochroic1854
polychroic1861
pleochromatic1864
pleochroous1864
pleochroitic1879
1879 F. Rutley Study of Rocks vii. 58 Determining the position of the pleochroitic maxima.
1938 W. L. Kubiëna Micropedology ii. viii. 106 (table) Nontronite... Frequently blades and fibres (especially if Fe2O3 increased): Pleochroitic.
1995 Physics & Chem. Minerals 22 108/1 From the pleochroitic behaviour of the OH-vibrations three groups of bands can be distinguished.
This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).
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adj.1879
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