What is the term for the liturgical celebration of the Eucharist in Eastern Orthodox churches?

The term that specifically refers to the liturgical celebration of the Eucharist in Eastern Orthodox churches is "Divine Liturgy." This term encompasses the entire Eucharistic celebration, including the rituals, prayers, and hymns that are integral to the service. The Divine Liturgy is considered the central act of worship and is characterized by its rich traditions, deep theological significance, and the communion of the faithful with Christ.

In the context of Eastern Orthodoxy, the Divine Liturgy varies slightly among different jurisdictions but maintains a core structure that reflects the theology and practices of the Church. It is not merely a gathering but a sacramental act that is profoundly communal and mystical, emphasizing the transformative relationship between the faithful and the divine.

Other terms related to the Eucharist, such as Holy Communion and Mass, are used in different contexts and traditions. Holy Communion usually refers specifically to the receiving of the Eucharistic elements rather than the entire liturgical service. Mass is primarily associated with the Roman Catholic Church's version of the Eucharistic celebration. "Orthodox Service" is too general and does not specifically denote the Eucharistic celebration, which is why "Divine Liturgy" is the correct term for this celebration in the Eastern Orthodox tradition.