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boneblack

 - 2 dictionary results

bone⋅black

[bohn-blak]
–noun
a black, carbonaceous substance obtained by calcining bones in closed vessels, used as a black pigment, a decolorizing agent, etc.
Also, bone black.


Origin:
1805–15; bone1 + black
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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bone·black also bone black   (bōn'blāk')   
n.  A black pigment containing about 10 percent charcoal, made by roasting bones in an airtight container and used in polishes, as a filtering medium, and in decolorizing sugar. Also called bone charcoal.
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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