primary color

primary color

noun
1.
Art. a color, as red, yellow, or blue, that in mixture yields other colors. Compare complementary color (def. 1), secondary color, tertiary color.
2.
Optics. any of a set of monochromatic colors, as red, green, and blue, that are added to match or specify the chromaticity of a stimulus or sample.

Origin:
1605–15
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Primary color is always a great word to know.
So is doohickey. Does it mean:
a scrap or morsel of food left at a meal.
a gadget; dingus; thingumbob.
American Heritage
Science Dictionary
primary color  
Any of a group of colors from which all other colors can be made by mixing. See more at additive, subtractive. See Note at color.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Dictionary.com, LLC. Copyright © 2012. All rights reserved.
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