from the GNU version of the Collaborative International Dictionary of English
- n. a fine charcoal prepared by calcining bones in a closed vessel; -- used as a filtering agent in sugar refining, and as an absorbent and disinfectant.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. black substance containing char in the form of carbonized bone; used as a black pigment
Sorry, no etymologies found.