Prussian blue - Definitions from Dictionary.com

4 results for: Prussian blue

Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This

Prussian blue

–noun

1.	a moderate to deep greenish blue.

2.	one of the iron blues, a dark-blue, crystalline, water-insoluble pigment, Fe₄[Fe(CN)₆]₃, produced by reacting ferrocyanic acid or a ferrocyanide with a ferric compound: used in painting, fabric printing, and laundry bluing.

[Origin: 1715–25; trans. of F bleu de Prusse, so called because it was discovered and first reported in Berlin, capital of Prussia

]

Dictionary.com Unabridged (v 1.1)
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Encyclopædia Britannica, Inc.
Prussian blue

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American Heritage Dictionary - Cite This Source - Share This

iron blue
n. Any of various light-resistant and heat-resistant, semitransparent blue pigments of powerful tinctorial strength, used chiefly in permanent industrial finishes, printing inks, and artists' colors. Also called Prussian blue.

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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

American Heritage Dictionary - Cite This Source - Share This

Prussian blue
n.

An insoluble dark blue pigment and dye, ferric ferrocyanide or one of its modifications.
See iron blue.
A moderate to strong blue or deep greenish blue.

[From its having been discovered by an 18th-century color-maker in Berlin (then in Prussia).]

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