Correct spelling for the English word "phlogosin" is [flˈɒɡəsˌɪn], [flˈɒɡəsˌɪn], [f_l_ˈɒ_ɡ_ə_s_ˌɪ_n] (IPA phonetic alphabet).
A substance, isolated from cultures of pus-producing cocci, injections of sterilized solutions of which will excite suppuration.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.