from The American Heritage® Dictionary of the English Language, 4th Edition
- 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.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A preparation containing carbonized bone, used as a pigment and a filtering medium.
from the GNU version of the Collaborative International Dictionary of English
- n. See Bone black, under bone, n.
In this way, the "boneblack" of commerce is manufactured.] may be crumbled into powder with the fingers.
Muriate of potash costs $40 and upwards per ton, sulfate about $48, dissolved boneblack about $24, ground bone about $30, kainit about $13, and nitrate of soda about 2-1/4 cents per pound.
He looked at their feet and spotted a woman’s exquisite leather shoes, boneblack and glossed under a sconce.