Correct spelling for the English word "Retecious" is [ɹɪtˈɛʃəs], [ɹɪtˈɛʃəs], [ɹ_ɪ_t_ˈɛ_ʃ_ə_s] (IPA phonetic alphabet).
Resembling network.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.