Correct spelling for the English word "attraxin" is [ɐtɹˈaksɪn], [ɐtɹˈaksɪn], [ɐ_t_ɹ_ˈa_k_s_ɪ_n] (IPA phonetic alphabet).
A hypothetical substance which is supposed to have a chemotactic influence upon certain cells of the body.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.