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单词 primary colour
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primary colour

Word forms: plural primary coloursregional note: in AM, use primary color
countable noun [usually plural]
Primary colours are basic colours that can be mixed together to produce other colours. They are usually considered to be red, yellow, blue, and sometimes green.
It comes in bright primary colours that kids will love.

primary colour in British English

noun
1.  Also called: additive primary
any of three spectral colours (usually red, green, and blue) that can be mixed to match any other colour, including white light but excluding black
2.  Also called: subtractive primary
any one of the spectral colours cyan, magenta, or yellow that can be subtracted from white light to match any other colour. An equal mixture of the three produces a black pigment
3.  Also called: psychological primary
any one of the colours red, yellow, green, or blue. All other colours look like a mixture of two or more of these colours and they play a unique role in the processing of colour by the visual system
See also secondary colour, complementary colour

Examples of 'primary colour' in a sentence
primary colour

Three primary colours added together in equal proportions give white light.
Freeman, Michael Collins Complete Guide to Photography (1993)
The visible portion is natural light which includes the spectrum of primary colours.
Turner, Roger Newman The Hayfever Handbook - a summer survival guide (1988)
A lack of bright primary colour.
Times, Sunday Times (2011)
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更新时间：2024/12/22 12:15:53