\Tran`sub*stan`ti*a"tion\, n. [LL.
transubstantiatio: cf. F. transsubstantiation.]
1. A change into another substance.
2. (R. C. Theol.) The doctrine held by Roman Catholics, that
   the bread and wine in the Mass is converted into the body
   and blood of Christ; -- distinguished from
   consubstantiation, and impanation.