| 释义 |
dichroscope|ˈdaɪkrəʊskəʊp|
Also dichroiscope, dichroöscope.
[f. Gr. δίχρο-ος two-coloured + -σκοπ-ος observing.
(The etymologically regular form is dichroöscope, but dichroscope is more convenient.)]
An instrument for observing or testing the dichroism of crystals, etc. Hence dichroˈscopic a., of or pertaining to a dichroscope.
1857Nichol Cycl. Phys. Sc. (1860) 582 Dichroscopic lens, or dichroscope. 1876Catal. Sci. Appar. S. Kens. §3469 Dichroiscope. 1879O. N. Rood Chromatics x. 137 A..piece of apparatus contrived by Dove, for mixing the coloured light furnished by stained glass, and called by him a dichroöscope. 1888Proc. R. Geog. Soc. May 273 The ruby..when examined by the dichroscope, exhibited two tints. 1890M. D. Rothschild Handbk. Prec. Stones 15 When a stone is examined by means of the dichroiscope, it will show two images of the same hue, or of different hues. |