food ren·der·ing(fūd ren'dĕr-ing)
Conversion of waste and scrap matter from industrial slaughterhouses into animal feed; has been associated with spread of Creutzfeldt-Jakob disease (q.v.).
The conversion of the waste products of animal butchery into feeds, bone meal, tallows, oils, and fertilizer. Consumption of rendered feed products sometimes results in animal and human infections, such as bovine spongiform encephalopathy (mad cow disease).