sac ‧ ra ‧ ment /ˈsækrəmənt/ BrE AmE noun [countable]
[ Date: 1100-1200 ; Language: Old French ; Origin: Late Latin sacramentum , from Latin sacrare 'to make holy' ]
1 . the Sacrament the bread and wine that are eaten at ↑ communion (=an important Christian ceremony)
2 . one of the important Christian ceremonies, such as marriage or ↑ communion
—sacramental /ˌsækrəˈmentl◂/ adjective