What is "lean finely textured beef"

alt. (context in the meat industry on product packaging euphemistic English) A meat byproduct produced from otherwise unusable material such as skin and connective, spinal, and digestive tissues by heating and then mixing with ammonia in a centrifuge to produce a food additive. n. (context in the meat industry on product packaging euphemistic English) A meat byproduct produced from otherwise unusable material such as skin and connective, spinal, and digestive tissues by heating and then mixing with ammonia in a centrifuge to produce a food additive.