The term "baby bottle" refers to a small container, typically made from glass or plastic, that is designed for feeding infants with milk or other liquids. These containers come in various sizes and shapes, but they all serve the same purpose of providing an easy way to give babies their daily nourishment. The bottles are equipped with a nipple that allows the baby to suck on it while drinking from the container. Baby bottles can be used for feedings or as a means of storing breast milk, formula or other liquids.