What does "cider" mean?

Cider: The expressed juice of apples. It is used as a beverage, for making vinegar, and for other purposes. Note: Cider was formerly used to signify the juice of other fruits, and other kinds of strong liquor, but was not applied to wine. Cider brandy, a kind of brandy distilled from cider. -- Cider mill, a mill in which cider is made. -- Cider press, the press of a cider mill.