| 单词 | colour top |
| 释义 | > as lemmascolour top colour top n. a top with the upper surface painted in coloured sections, esp. with the colours of the spectrum, so that the effects of the combination of these colours can be seen when the top is spun. ΘΚΠ the world > matter > colour > science of colour > [noun] > instruments combining colours colour circle1854 colour top1855 chromatrope1860 colour box1870 wheel of colour1877 colour organ1881 colour wheel1909 1855 Edinb. New Philos. Jrnl. 1 361 For the sake of excluding the colour-blind and of certifying the acuteness of visual perception of those who are to handle and interpret railway-signals, the colour-top will prove of great service in determining those points. 1886 Athenæum 21 Aug. 242/2 The mixture of colours apart from the mixture of pigments..is best illustrated by the use of the well-known colour-top. 1989 E. F. Provenzo & A. B. Provenzo 47 Easy-to-do Classic Sci. Exper. 35 (heading) How to make a color top. < as lemmas |
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