b : a natural pigment containing graphite c : black iron oxide The Ultimate Dictionary Awaits Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged. Expanded definitions Detailed etymologies Advanced search tools All ad-free Discover what makes Merriam-Webster Unabridged...
The meaning of MINERAL BROWN is any of several colors of native earths colored with iron oxide that average a black to a dark grayish yellowish brown color —called also iron, metallic brown.
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