D defs.my
Entry 1 sense Webster, 1913

Dephlogisticcate

· De·phlo·gis·tic·cate · IPA
01 v. t. To deprive of phlogiston, or the supposed principle of inflammability.
imp. & p. p. Dephlogisticated; p. pr. & vb. n. Dephlogisticating
  1. 1.
    To deprive of phlogiston, or the supposed principle of inflammability.(O. Chem.)
Phrases & compounds
Dephlogisticated air — oxygen gas; -- so called by Dr. Priestly and others of his time.