From Longman Dictionary of Contemporary Englishtransubstantiationtran‧sub‧stan‧ti‧a‧tion /ˌtrænsəbstænʃiˈeɪʃən/ noun [uncountable] RRCthe belief of some Christians that the bread and wine taken in Holy Communion become the actual body and blood of Christ
Examples from the Corpus
transubstantiation• They, however, have a wholly different outlook because of transubstantiation, which sounds like a disease but is a doctrine.• He surrendered all he had fought for, accepting even the Catholic doctrine of transubstantiation and the existence of Purgatory.• Some Arminians were even accused of attempting to disseminate views on the eucharist that were suspiciously similar to transubstantiation.Origin transubstantiation (1300-1400) Medieval Latin transubstantiatio, from transubstantiare “to change into another substance”, from Latin substantia “substance” 