animal charcoal

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Related to bone charcoal: animal charcoal

an·i·mal char·coal

charcoal produced by incomplete combustion of animal tissues, especially bone.
References in periodicals archive ?
38 Catalyst Universal animal bone charcoal BET surface area, 104 [+ or -] 1 [m.
The ministry has decided to ban the import and domestic distribution of meat and bone meal (MBM), but will allow continued use of bone ash and bone charcoal products that do not include protein.
Some imported vodkas may also have been passed through a bone charcoal filter.