What fancy word describing a church's stance on the Eucharist most closely applies to Mormonism? Do Mormons believe in transubstantiation, or consubstantiation, or the Lutheran "sacramental union", or the Calvinist "mystical presence", or perhaps a more Zwinglian "purely symbolic" approach?

Is there a quick and easy way to sum up the Mormon view on the Eucharist such as I have enumerated above? (Leaving aside the fact that they use water rather than wine or grape juice)
In the The Church of Jesus Christ of Latter-day Saints the Eucharist is generally called "the Sacrament." Though priesthood authority is required to administer it, there is no concept of transubstantiation or cosubstantiation. The act of taking the bread and water is a token of rememberance of Christ and a renewal of baptismal and other covenants necessary for repentance.

More information about the Sacrament can be found here