Definition of impanation :
Embodiment in bread; the supposed real presence and union of Christ's material body and blood with the substance of the elements of the eucharist without a change in their nature; -- distinguished from transubstantiation, which supposes a miraculous change of the substance of the elements. It is akin to consubstantiation.
- It maintains that this presence of the body and blood of Christ, though real, is neither an impanation nor a companation, neither a local inclusion nor a mixture of the two substances, but illocal and transcendent. - "Historical Introductions to the Symbolical Books of the Evangelical Lutheran Church", Friedrich Bente.