- Animal charcoal
- Charcoal Char"coal`, n. [See {Char}, v. t., to burn or to
reduce to coal, and {Coal}.]
1. Impure carbon prepared from vegetable or animal
substances; esp., coal made by charring wood in a kiln,
retort, etc., from which air is excluded. It is used for
fuel and in various mechanical, artistic, and chemical
processes.
[1913 Webster]
2. (Fine Arts) Finely prepared charcoal in small sticks, used as a drawing implement. [1913 Webster]
{Animal charcoal}, 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.
{Charcoal blacks}, the black pigment, consisting of burnt ivory, bone, cock, peach stones, and other substances.
{Charcoal drawing} (Fine Arts), a drawing made with charcoal. See {Charcoal}, 2. Until within a few years this material has been used almost exclusively for preliminary outline, etc., but at present many finished drawings are made with it.
{Charcoal point}, a carbon pencil prepared for use in an electric light apparatus.
{Mineral charcoal}, a term applied to silky fibrous layers of charcoal, interlaminated in beds of ordinary bituminous coal; -- known to miners as mother of coal. [1913 Webster]
The Collaborative International Dictionary of English. 2000.