The Collaborative International Dictionary
Dephlogisticcate \De`phlo*gis"tic*cate\, v. t. [imp. & p. p.
Dephlogisticated; p. pr. & vb. n. Dephlogisticating.]
[Pref. de- + phlosticate: cf. F. d['e]phlogistiguer.] (O.
Chem.)
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.
Wiktionary
n. (context chemistry obsolete English) The process of dephlogisticate; removal of the phlogiston, or supposed ability to burn.
Usage examples of "dephlogistication".
Cox, if I remember her dissertation correctly, proposes to prevent this stodgy dephlogistication of marriage by interrupting its course--that is, by separating the parties now and then, so that neither will become too familiar and commonplace to the other.