A portable slab of stone consecrated for use where there is no consecrated altar.
圣餐台（指在没有祝圣过的祭坛处使用的祝圣过的可搬动式石板）
Example sentencesExamples
The scene captures the moment when, during a mass in the Sta Croce in Gerusaleme Church in Rome, Pope Gregorius the Great experienced a vision of Christ of Dolours at the altar mensa (superaltar), validating theological speculations on the actual presence of Christ in the holy wafer.
The superaltar bears the inscription: ‘I am that Bread of Life.’
You may take away from us if you will every external ceremony; you may take away altars, and superaltars, lights and incense and vestments, and we will submit to you.
The answer is that the superaltars which are made by the bishops when a church is consecrated, suffice oratories in lieu of consecration or enthronement when they are sent to them, on the occasion of their dedication or opening.
Properly speaking, a superaltar is a small movable slab of stone, which is placed, as occasion for the celebration of the Holy Communion may require, upon some unconsecrated table or altar.
The Communion-table is of wood, with a vulgar-looking attempt at superaltar and reredos.
Origin
Middle English: from medieval Latin superaltare, from super- 'over' + late Latin altar(e) 'altar'.