Rennet, the stomach contents of an unweaned animal; also, the membrane lining the stomach. The word rennet also refers to preparations that contain the enzyme rennin and that are used in curdling milk. The chief source of rennet is the fourth stomach of young calves. Rennet is used in making cheese, junket, and medicinal preparations. It is also used to coagulate casein (a milk protein) in making plastics.
Redstart is a vivacious little bird, four to six inches (10 to 15 cm) long, that is found in open woods in North America.
Dogs are known as loyal animals and have even saved the lives of their owners. But one dog's loyalty to his master touched the hearts of an entire nation.