Culinary names, menu names, or kitchen names are names of foods used in the preparation or selling of food, as opposed to their names in agriculture or in scientific nomenclature. The menu name may even be different from the kitchen name. For example, from the 19th until the mid-20th century, many restaurant menus were written in French and not in the local language. Examples include veal (calf), calamari (squid), and sweetbreads (pancreas or thymus gland). Culinary names are especially common for fish and seafood, where multiple species are marketed under a single familiar name.