Definition of: consubstantiate

(kon′səb·stan′shē·āt) v. ·at·ed, ·at·ing v.t.
1. To unite in one common substance.
2. To regard as being so united.
—v.i.
3. To become one in substance.
4. To believe in the doctrine of consubstantiation. [<Med. L consubstantiatus, pp. of consubstantiare <com- together + substantia SUBSTANCE]