sippy cup
/ˈsɪpikʌp
/noun
A small cup with a lid and a spout, for an infant or young child to drink from.She won't drink from a sippy cup....
- He sat in his chair that Sunday smiling and drinking from his sippy cup.
- I fed him some jarred baby food and apple sauce, helped him drink formula from a sippy cup, and then we went on our long walk.