§1362
Sacraments › … › V. The Sacramental Sacrifice Thanksgiving, Memorial, Presence
The sacrificial memorial of Christ and of his Body, the Church
The Eucharist is the memorial of Christ's Passover, the making present and the sacramental offering of his unique sacrifice, in the liturgy of the Church which is his Body. In all the Eucharistic Prayers we find after the words of institution a prayer called the anamnesis or memorial.
Source: Catechism of the Catholic Church (Vatican.va)