Soybean meal is a widely used source of protein in animal feed. However, there are several synonyms for this ingredient that might be less familiar to some people. One synonym is soybean cake, which refers to the residual material left after the oil has been extracted from soybeans. Another synonym is soybean press cake, which is used to describe the same material. Soybean meal can also be referred to as soy meal or simply soy, although these terms may be less precise. In organic or natural farming, soybean meal can be replaced by other sources of protein such as alfalfa meal, cottonseed meal, or fish meal.