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)