Prussian blue
Share:
Tweet n. 1. An insoluble dark blue pigment and dye, ferric ferrocyanide or one of its modifications. 2. See iron blue. 3. 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).] |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.