— transubstantial , adj. — transubstantially , adv.
/tran'seuhb stan"shee ayt'/ , v.t., transubstantiated, transubstantiating .
1. to change from one substance into another; transmute.
2. Theol. to change (the bread and wine) into the body and blood of Christ in the Eucharist.
[ 1400-50; v. use of late ME transsubstanciate (adj.) transubstantiated transsubstantiatus, ptp. of transsubstantiare. See TRANS-, SUBSTANCE, -ATE 1 ]