Dē'phlo-gis'ti-cāte, v. t.

v. t. [imp. & p. p. DEPHLOGISTICATED; p. pr. & vb. n. DEPHLOGISTICATING.]

[From de and phlogisticate, q. v.; Fr. déphlogistiquer, It. deflogisticare.] (O. Chem.) To deprive of phlogiston, or the supposed principle of inflammability. Priestley.

Dephlogisticated air, oxygen gas;—so called by Dr. Priestley and others of his time.