"A theological doctrine that, like the competing theory of transubstantiation, attempts to describe the nature of the Christian in Eucharist concrete metaphysical terms. It holds that during the sacrament the fundamental "substance" of the body and blood of Christare present alongside the substance of the bread and wine, which remain present. Transubstantiation differs from consubstantiation in that it postulates that through consecration, according to some, that one set of substances (bread and wine) is exchanged for another (the Body and Blood of Christ) or, according to others, that the reality of the bread and wine become the reality of the body and blood of Christ. The substance of the bread and wine do not remain, but their accidents (superficial properties like appearance and taste) remain".