ultramarine(redirected from ultramarinely)
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substance that imparts color to other materials. In paint, the pigment is a powdered substance which, when mixed in the liquid vehicle, imparts color to a painted surface.
..... Click the link for more information. used chiefly as a coloring material and as a bluing agent. A double silicate of sodium and aluminum with some sulfur, it is prepared commercially from kaolin, sulfur, soda ash, and other inexpensive ingredients. It was formerly produced by grinding the rare mineral lapis lazuli and was very costly.
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A blue pigment used in paint; once obtained from crushed lapis lazuli; now manufactured synthetically by calcining aluminum silicate and sodium sulfide; has good alkali resistance, but is sensitive to acids.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
1. a vivid blue colour
2. from across the seas
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005