tr.v. tran·sub·stan·ti·at·ed, tran·sub·stan·ti·at·ing, tran·sub·stan·ti·ates 1. To change (one substance) into another; transmute. 2. Christianity To change the substance of (the Eucharistic bread and wine) into the body and blood of Jesus. [Medieval Latin trānsubstantiāre, trānsubstantiāt- : Latin trāns-, trans- + Latin substantia, substance; see SUBSTANCE.] |
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