To change (one substance) into another; transmute.
(christianity) To change the substance of (the Eucharistic bread and wine) into the body and blood of Jesus.
To change from one substance into another; transmute; transform.
(r.c.ch., eastern orthodox ch.) To cause (bread and wine) to undergo transubstantiation.
Origin of transubstantiate
- Medieval Latin trānsubstantiāre trānsubstantiāt- Latin trāns- trans- Latin substantia substance substance
From American Heritage Dictionary of the English Language, 5th Edition