a. 1. (Old Chem.) Of or pertaining to phlogiston, or to belief in its existence. [ 1913 Webster ]

2. (Med.) Inflammatory; belonging to inflammations and fevers. [ 1913 Webster ]

a. (Old Chem.) Phlogistic. [ 1913 Webster ]

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. [ 1913 Webster ]

n. (Old Chem.) The act or process of combining with phlogiston. [ 1913 Webster ]