- transubstantiation - the Roman Catholic doctrine that the whole substance of the bread and the wine changes into the substance of the body and blood of Christ when consecrated in the Eucharist
--1 is a kind of theological doctrine, religious doctrine
Derived form: verb transubstantiate1 - transmutation, transubstantiation - an act that changes the form or character or substance of something
--2 is a kind of conversion
Derived form: verb transubstantiate2