1. Unfermented juice pressed from fruit, especially apples, used as a beverage or to make other products, such as vinegar.
2. An alcoholic beverage made by fermenting juice pressed from fruit, especially apples. Also called hard cider.
[Middle English sidre, hard cider, from Old French sizre, sidre, from Late Latin sīcera, intoxicating drink, from Greek sikera, of Semitic origin; see škr in the Appendix of Semitic roots.]
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