noun the juice pressed from apples (or formerly from some other fruit) used for drinking, either before fermentation (sweet cider) or after fermentation (hard cider), or for making applejack, vinegar, etc.
Origin:
1250–1300; Middle English sidre < Middle French < Old French si(s)dre < Late Latin sīcera strong drink < Septuagint Greek sī́kera < Hebrew shēkhār (Levit. 10:9); replacing Middle English sithere < Old French sidre
Related formsci·der·ish, ci·der·like, adjective