The Collaborative International Dictionary
Phlogisticating
Phlogisticate \Phlo*gis"ti*cate\, v. t. [imp. & p. p. Phlogisticated; p. pr. & vb. n. Phlogisticating.] (Old Chem.) To combine phlogiston with; -- usually in the form and sense of the p. p. or the adj.; as, highly phlogisticated substances.
Wiktionary
phlogisticating
vb. (present participle of phlogisticate English)