A covered vessel in the shape of a cup that is used to keep consecratedIn the Roman Catholic Church, the moment when, during the Eucharist, the bread and wine are transformed into the body and blood of Jesus, the so-called transubstantiation, by the pronouncement of the sacramental words. hosts in the tabernacleA small cupboard in the choir or in a specially designated chapel in which the consecrated hosts are kept. and to distribute them at communionThe consumption of consecrated bread and wine. Usually this is limited to eating the consecrated host..