Correct spelling for the English word "ithylordosis" is [ˌɪθɪlɔːdˈə͡ʊsɪs], [ˌɪθɪlɔːdˈəʊsɪs], [ˌɪ_θ_ɪ_l_ɔː_d_ˈəʊ_s_ɪ_s] (IPA phonetic alphabet).
A pure lordosis without lateral curvature of the spine.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.