"A baby bottle, or nursing bottle, or feeding bottle, is a bottle with a teat (also called a nipple in the US) to drink directly from. ...
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It is typically used by infants and young children, or if someone cannot (without difficulty) drink from a cup, for feeding oneself or being fed. It can also be used to feed non-human mammals.
In particular it is used to feed infant formula, expressed breast milk or pediatric electrolyte solution." - (en.wikipedia.org 02.04.2021)