“trichroism”的英文意思_释义_用法

单词

trichroism

释义

trichroism|ˈtraɪkrəʊɪz(ə)m|
[f. as prec. + -ism. Cf. F. trichroïsme.]
The property of being trichroic: spec. a. Cryst.: see prec.
1847Webster cites Dana.1860in Mayne Expos. Lex.1865–8Watts Dict. Chem. III. 670 Some biaxial crystals exhibit trichroïsm; thus certain Brazilian topazes of a yellowish rose tint in the direction of the median line, are violet when viewed along the complementary line, and yellowish white perpendicular to the plane of the axes.1881S. P. Thompson in Nature 15 Sept. 465/2 Crystals in which the electric conductivity differs in three different directions will exhibit trichroism.
b. Nat. Hist. The occurrence of three different colorations in three varieties of a species, as in certain birds and insects.
1899Sharp in Cambr. Nat. Hist. VI. vi. 351 H[eliconius] erato exhibits the very rare condition of trichroism, the hind wings being either red, blue, or green.

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