[f. prec. + -ISM.] The doctrine of consubstantiation.
1835. Waddington, Hist. Ch. (ed. 2), I. vii. 206, note. The conditions of concord on which they at length agreed amounted to this: the Catholics conceded the offensive term (Consubstantialism), [etc.].
1840. Milman, Hist. Chr., III. They [Arians] might be excused the adoption of the one obnoxious word, the Homoousion, or Consubstantialism.
