transubstantiating

transitive verb transubstantiated, transubstantiating

1. to change from one substance into another; transmute; transform
2. R.C.Ch., Eastern Orthodox Ch. to cause (bread and wine) to undergo transubstantiation

Origin: < ML(Ec) transubstantiatus, pp. of transubstantiare < L trans-, trans- + substantia, substance