also: せいざん
noun
Holy Communion; Eucharist; Lord's Supper
Christian term for the sacrament of the Eucharist. Used in liturgical and theological contexts.
日曜日の礼拝で聖餐にあずかった。
I received Holy Communion at Sunday service.
聖
The Eucharist is one of the important rites of Christianity.
From 聖 (holy) + 餐 (meal, eating). A Sino-Japanese term coined to translate the Christian concept of the Eucharist.