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cobalt blue

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cobalt blue

–noun
1. a deep blue to a strong greenish-blue color.
2. any of a number of pigments containing an oxide of cobalt.


Origin:
1825–35
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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cobalt blue  
n.  
  1. A blue to green pigment consisting of a variable mixture of cobalt oxide and alumina.

  2. A moderate to deep vivid blue or greenish blue.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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