| 单词 | constant of colour |
| 释义 | > as lemmasconstant of colour constant of colour n. now historical each of a set of three quantities which together uniquely specify a particular colour; usually in plural.As originally proposed the three quantities were purity, luminosity, and tone; they were later given as saturation, lightness, and hue (cf. Munsell n.). ΚΠ 1876 O. N. Rood in Q. Jrnl. Sci. 6 458 (heading) The constants of colour. 1902 E. N. Vanderpoel Color Probl. (2005) iii. 26 Colors have three principal qualities, called scientifically ‘constants of color’, which should be studied as a preparation for the study of the harmony of colors. 1965 F. Birren Hist. Color in Painting xii. 226/1 Rood undertook discussions of reflected and transmitted light, color dispersion, and the constants of color. < as lemmas |
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