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Meaning of "colour index" in the English dictionary

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DICTIONARY
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PRONUNCIATION OF COLOUR INDEX

colour index play
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GRAMMATICAL CATEGORY OF COLOUR INDEX

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
Colour index is a noun.
A noun is a type of word the meaning of which determines reality. Nouns provide the names for all things: people, objects, sensations, feelings, etc.

WHAT DOES COLOUR INDEX MEAN IN ENGLISH?

Color index

In astronomy, the color index is a simple numerical expression that determines the color of an object, which in the case of a star gives its temperature. To measure the index, one observes the magnitude of an object successively through two different filters, such as U and B, or B and V, where U is sensitive to ultraviolet rays, B is sensitive to blue light, and V is sensitive to visible light. The set of passbands or filters is called a photometric system. The difference in magnitudes found with these filters is called the U-B or B–V color index, respectively. The smaller the color index, the more blue the object is. Conversely, the larger the color index, the more red the object is. This is a consequence of the logarithmic magnitude scale, in which brighter objects have smaller magnitudes than dimmer ones. For comparison, the yellowish Sun has a B–V index of 0.656 ± 0.005, while the bluish Rigel has a B–V of –0.03. In principle, the temperature of a star can be calculated directly from the B-V index, and there are in the literature several formulae to make this connection.

Definition of colour index in the English dictionary

The first definition of colour index in the dictionary is the difference between the apparent magnitude of a star measured in one standard waveband and in a longer standard waveband, indicating its colour and temperature. Other definition of colour index is the sum of the dark or coloured minerals of a rock, expressed as a percentage of the total minerals. Colour index is also a systematic arrangement of colours according to their hue, saturation, and brightness.

WORDS THAT BEGIN LIKE COLOUR INDEX

colour bar
colour blindness
colour camera
colour chart
colour code
colour commentator
colour contrast
colour film
colour filter
colour guard
colour line
colour phase
colour photograph
colour photography
colour printer
colour scheme
colour separation
colour separation overlay
colour sergeant
colour slide

WORDS THAT END LIKE COLOUR INDEX

body mass index
card index
card-index
consumer price index
cost-of-living index
cross-index
exposure index
glycaemic index
glycemic index
index
Nikkei index
prices index
refractive index
reindex
retail price index
share index
spandex
subindex
subject index
thumb index
wholesale price index

Synonyms and antonyms of colour index in the English dictionary of synonyms

SYNONYMS

Translation of «colour index» into 25 languages

TRANSLATOR
online translator

TRANSLATION OF COLOUR INDEX

Find out the translation of colour index to 25 languages with our English multilingual translator.
The translations of colour index from English to other languages presented in this section have been obtained through automatic statistical translation; where the essential translation unit is the word «colour index» in English.

Translator English - Chinese

显色指数
1,325 millions of speakers

Translator English - Spanish

índice de color
570 millions of speakers

English

colour index
510 millions of speakers

Translator English - Hindi

रंग सूचकांक
380 millions of speakers
ar

Translator English - Arabic

مؤشر اللون
280 millions of speakers

Translator English - Russian

показатель цвета
278 millions of speakers

Translator English - Portuguese

índice de cor
270 millions of speakers

Translator English - Bengali

রঙ ইন্ডেক্স
260 millions of speakers

Translator English - French

indice de couleur
220 millions of speakers

Translator English - Malay

Indeks warna
190 millions of speakers

Translator English - German

Farbindex
180 millions of speakers

Translator English - Japanese

色指数
130 millions of speakers

Translator English - Korean

컬러 인덱스
85 millions of speakers

Translator English - Javanese

Indeks werna
85 millions of speakers
vi

Translator English - Vietnamese

chỉ số màu
80 millions of speakers

Translator English - Tamil

வண்ண குறியீட்டு
75 millions of speakers

Translator English - Marathi

रंग अनुक्रमणिका
75 millions of speakers

Translator English - Turkish

Renk indeksi
70 millions of speakers

Translator English - Italian

indice di colore
65 millions of speakers

Translator English - Polish

indeks koloru
50 millions of speakers

Translator English - Ukrainian

показник кольору
40 millions of speakers

Translator English - Romanian

index de culoare
30 millions of speakers
el

Translator English - Greek

δείκτης χρώματος
15 millions of speakers
af

Translator English - Afrikaans

kleur indeks
14 millions of speakers
sv

Translator English - Swedish

färgindex
10 millions of speakers
no

Translator English - Norwegian

color index
5 millions of speakers

Trends of use of colour index

TRENDS

TENDENCIES OF USE OF THE TERM «COLOUR INDEX»

The term «colour index» is normally little used and occupies the 108.885 position in our list of most widely used terms in the English dictionary.
0
100%
FREQUENCY
Little used
49
/100
The map shown above gives the frequency of use of the term «colour index» in the different countries.
Principal search tendencies and common uses of colour index
List of principal searches undertaken by users to access our English online dictionary and most widely used expressions with the word «colour index».

FREQUENCY OF USE OF THE TERM «COLOUR INDEX» OVER TIME

The graph expresses the annual evolution of the frequency of use of the word «colour index» during the past 500 years. Its implementation is based on analysing how often the term «colour index» appears in digitalised printed sources in English between the year 1500 and the present day.

Examples of use in the English literature, quotes and news about colour index

EXAMPLES

10 ENGLISH BOOKS RELATING TO «COLOUR INDEX»

Discover the use of colour index in the following bibliographical selection. Books relating to colour index and brief extracts from same to provide context of its use in English literature.
1
Paint and Coating Testing Manual: Fourteenth Edition of the ...
www.astm.org Colour Index Substituents Colour Index Name Number 2 4 5 ... This system is known as the "Colour Index," \_1~\ and as such is a recognized trademark, hence the retention of the "u" in "colour" whenever reference is made to a ...
J. V. Koleske, 1995
2
Color for Science, Art and Technology
TABLE 10.1 Colour Index Names and accepted abbreviations. Colour Index Name Accepted abbreviation Pigment Blue PB Pigment Green PG Pigment Orange PO Pigment White PW Pigment Black PBk Pigment Metal PM Pigment Violet PV ...
K. Nassau, 1997
3
Colour Chemistry
The most important reference work dealing with the classification of dyes and pigments is the Colour Index, a publication produced by the Society of Dyers and Colourists, Bradford, England. This series of volumes provides a comprehensive  ...
R. M. Christie, Royal Society of Chemistry (Great Britain), 2001
4
How to Mix and Use Colour
Colour Index Name (C.I. Name): Sometimes pigments with difficult names — Phthalocyanine Blue (Pigment Blue, PB 15), for example — are given simpler, but often fairly meaningless names, such as Monestial Blue. These names will vary ...
Tony Paul, 2003
5
Coatings Materials and Surface Coatings
When a pigment is used to color or opacify a substrate, the finely divided, insoluble solid remains throughout the coloration process. The Colour Index System is a coding system as developed under the joint sponsorship of the Society of Dyers ...
Arthur A. Tracton, 2006
6
Tattoo Inks: Analysis, Pigments, Legislation: An ...
The Colour Index (10) was initially developed for dyers and printers and first published in 1925. Two organisations are responsible for the development: The Society of Dyers and Colourists (SDC), UK, and the American Association of Textile ...
Gerald Prior, 2014
7
Computer Graphics, Multimedia and Animation
If no global colour map is indicated, a default colour map is generated internally which maps each possible incoming colour index to the hardware colour index I incoming colour index modulo < n >, where < n > is the number of available ...
Pakhira Malay K., 2010
8
Pigment Compendium: A Dictionary and Optical Microscopy of ...
CrO4Ba. 10294-40-3. K2Ba(CrO4)2. Wohler (cf. Colour Index (1971) 77295), then chem. lit. Wohler (cf. Colour Index (1971) 77295), then chem. lit. Widely recognised (rev.: Newman (1997)) CI 77288/Pigment Green 17 Mineral analogue  ...
Valentine Walsh, Tracey Chaplin, 2008
9
Pigment Compendium: A Dictionary of Historical Pigments
Colour Index (1971) 77295), then chem. lit. 8 4 2 Chromium Halides Chromium(III ) chloride Cl3CrH12O6, probably 10060-12-5 or Wohler (cf. Colour Index (1971) 77295), hexahydrate as [Cr(OH2)6]Cl3 13820-88-7 then chem. lit.
Nicholas Eastaugh, Valentine Walsh, Tracey Chaplin, 2007
10
Pigment Compendium
CrO4Ba. 10294-40-3. K2Ba(CrO4)2. Wohler (cf. Colour Index (1971) 77295), then chem. lit. Wohler (cf. Colour Index (1971) 77295), then chem. lit. Widely recognised (rev.: Newman (1997)) CI 77288/Pigment Green 17 Mineral analogue  ...
Nicholas Eastaugh, Valentine Walsh, Tracey Chaplin, 2008

10 NEWS ITEMS WHICH INCLUDE THE TERM «COLOUR INDEX»

Find out what the national and international press are talking about and how the term colour index is used in the context of the following news items.
1
Report on Unsafe Food: Southern Rly Starts Collecting Information
... (carmoisine with colour index 14720), (tartrazine with 19140), brilliant blue FCF - colour index 42090, metanil yellow, which were prohibited ... «The New Indian Express, Jun 15»
2
Now, Food Served by Railways too Chugs Into Wrong Track
... (Carmoisine with colour index 14720), (Tartrazine with 19140), Brilliant Blue FCF - colour index 42090, Metanil yellow which were prohibited ... «The New Indian Express, Jun 15»
3
The 650 Official Colours The US Government Uses
These systems were harbingers of modern globalisation: You only needed a colour index if you were dealing with producing many objects ... «Gizmodo Australia, May 15»
4
Fancy Colour Diamond Index shows growth in value
Data from the third Fancy Colour Index published by the Fancy Colour Research Foundation has revealed a growth in value of fancy coloured ... «Retail Jeweller, May 15»
5
Dystar phases out Colour Index
The Colour Index is a reference work published jointly by the Society of Dyers & Colourists and the American Association of Textile Chemists ... «Ecotextile News, Apr 15»
6
DyStar to phase out usage of Colour Index
Giving reasons DyStar said, the Colour Index lists products based on general chemical structure, but is missing environmental and ecology ... «Fibre2fashion.com, Apr 15»
7
New Benefits For Colour Index From AATCC and SDC
Colour Index is the world's most authoritative method of dye and pigment classification, and its ongoing development ensures it remains a vital ... «Textile World Magazine, Feb 15»
8
Rising Costs of Rare Earth Materials Driving Up Paint Prices
(The Colour Index is a standard published by the British Society of Dyers and Colourists which identifies colors by their scientific name.) ... «Huffington Post, Dec 14»
9
Index of Airborne Geophysical Surveys
... interactive database of metadata for Australian airborne geophysical surveys has also been released, along with updated colour index maps ... «GISuser.com, Apr 14»
10
Huntsman Introduces Eriofast® Navy M
It also has been registered as a novel dye under the United Kingdom's Society of Dyers and Colourists Colour Index System and has been ... «Textile World Magazine, Mar 14»

REFERENCE
« EDUCALINGO. Colour index [online]. Available <https://educalingo.com/en/dic-en/colour-index>. Apr 2024 ».
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