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A steak is a thick cut of meat sliced across the muscle fibers, sometimes including a bone. It is normally grilled or fried. Steak can be diced, or cooked in sauce, as in steak and kidney pie.
Steaks are most commonly cut from cattle (beefsteak), but can also be cut from bison, buffalo, camel, goat, horse, kangaroo, sheep, ostrich, pigs, turkey, and deer, as well as various types of fish, especially salmon and large fish such as swordfish, shark, and marlin. Some cured meat, such as gammon, is commonly served as steak. Some cuts are categorized as steaks not because they are cut across the muscle fibers, but because they are relatively thin and cooked over a grill, such as skirt steak and flank steak. (Full article...)