The Collaborative International Dictionary
Schismatizing
Schismatize \Schis"ma*tize\, v. i. [imp. & p. p. Schismatized; p. pr. & vb. n. Schismatizing.] [Cf. F. schismatiser.] To take part in schism; to make a breach of communion in the church.
Wiktionary
schismatizing
vb. (present participle of schismatize English)