dephlogisticcate
De`phlo*gis"tic*cate, v. t. [imp. & p. p. Dephlogisticated; p. pr. & vb. n. Dephlogisticating.] Etym: [Pref. de- + phlosticate: cf. F. déphlogistiguer.] (O. Chem.) Defn: To deprive of phlogiston, or the supposed principle of inflammability. Priestley. Dephlogisticated air, oxygen gas; -- so called by Dr. Priestly and others of his time. -- De`phlo*gis`ti*ca"tion, n.