A bird of a type that is used to produce meat or eggs. (Cambridge Dictionary)
A fowl is a bird, especially one that can be eaten as food, such as a duck or a chicken. (Collins Dictionary)
A bird of any kind. (Merriam – Webster)
A cock or hen of the domestic chicken (Gallus gallus). (Merriam – Webster)
A gallinaceous bird kept for its eggs and flesh; a domestic cock or hen. (Oxford Dictionaries)
Any other domesticated bird kept for its eggs or flesh, e.g. a turkey or goose. (Oxford Dictionaries)
Fowl – Wikipedia.