Entry 3 senses · 2 variants Webster, 1913 Antiphlogistic · An·ti·phlo·gis·tic · IPA a. n. 01 a. Opposed to the doctrine of phlogiston. 1. Opposed to the doctrine of phlogiston.(Chem.) 2. Counteracting inflammation. See also anti-inflammatory.(Med.) See: anti-inflammatory 02 n. Any medicine or diet which tends to check inflammation. 1. Any medicine or diet which tends to check inflammation.(Med.)