英语词汇“colour index”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

colour index n. a scale or listing of colours; spec. (a) Medicine the ratio of the quantity of haemoglobin to the number of red blood cells present in a blood sample (now rare); (b) Astronomy a number representative of the colour (and hence the temperature) of a star, equal to the difference in its magnitude (brightness) at two chosen wavelengths, typically blue and green-yellow, or ultraviolet and blue; (c) Geology a number expressing the percentage of dark-coloured minerals (typically ferromagnesian ones) in an igneous rock.

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the world > life > the body > vascular system > blood > components of blood > blood corpuscle or plate > [noun] > red cells or corpuscles > colour index

colour index1908

the world > the universe > star > star-matter > [noun] > magnitude > colour index

colour index1921

the world > the earth > earth sciences > geology > mineralogy > [noun] > colour index

colour index1927

1869 Brit. Jrnl. Homœopathy 27 225 In no case does the colour-index furnish an identity of four terms, nor does the colorometer give identity at all.

1908 Practitioner Aug. 323 Generally the fewer the red corpuscles, the higher is the colour index.

1921 Discovery Feb. 38/1 The difference between the photographic and the visual magnitude of a star is therefore due to the colour of the star, and is called the colour-index.

1927 S. J. Shand Eruptive Rocks vii. 131 If a rock contains 17 per cent. of heavy minerals, we shall say that its colour ratio is 17 per cent., or that its colour index is 17.

1928 Lancet 28 Apr. 849/1 The reticulocytosis occurring in association with a remission is quickly followed by a fall in colour-index.

1977 A. Hallam Planet Earth 162/1 A high color index implies a high content of magnesium, iron and often calcium.

1998 Artist Mar. 37/1 The paints are listed by paint name..and the colour index name (abbreviated pigment colour and a number, for example PY 35).

2008 M. S. Longair Galaxy Formation (ed. 2) xvii. 519 The quasars no longer exhibit ultraviolet excesses in the (U−B) colour index.

单词	colour index
释义	> as lemmas colour index colour index n. a scale or listing of colours; spec. (a) Medicine the ratio of the quantity of haemoglobin to the number of red blood cells present in a blood sample (now rare); (b) Astronomy a number representative of the colour (and hence the temperature) of a star, equal to the difference in its magnitude (brightness) at two chosen wavelengths, typically blue and green-yellow, or ultraviolet and blue; (c) Geology a number expressing the percentage of dark-coloured minerals (typically ferromagnesian ones) in an igneous rock. ΘΚΠ the world > life > the body > vascular system > blood > components of blood > blood corpuscle or plate > [noun] > red cells or corpuscles > colour index colour index1908 the world > the universe > star > star-matter > [noun] > magnitude > colour index colour index1921 the world > the earth > earth sciences > geology > mineralogy > [noun] > colour index colour index1927 1869 Brit. Jrnl. Homœopathy 27 225 In no case does the colour-index furnish an identity of four terms, nor does the colorometer give identity at all. 1908 Practitioner Aug. 323 Generally the fewer the red corpuscles, the higher is the colour index. 1921 Discovery Feb. 38/1 The difference between the photographic and the visual magnitude of a star is therefore due to the colour of the star, and is called the colour-index. 1927 S. J. Shand Eruptive Rocks vii. 131 If a rock contains 17 per cent. of heavy minerals, we shall say that its colour ratio is 17 per cent., or that its colour index is 17. 1928 Lancet 28 Apr. 849/1 The reticulocytosis occurring in association with a remission is quickly followed by a fall in colour-index. 1977 A. Hallam Planet Earth 162/1 A high color index implies a high content of magnesium, iron and often calcium. 1998 Artist Mar. 37/1 The paints are listed by paint name..and the colour index name (abbreviated pigment colour and a number, for example PY 35). 2008 M. S. Longair Galaxy Formation (ed. 2) xvii. 519 The quasars no longer exhibit ultraviolet excesses in the (U−B) colour index. extracted from colourcolorn.¹ < as lemmas
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> as lemmas