Correct spelling for the English word "xeransis" is [zəɹˈansɪs], [zəɹˈansɪs], [z_ə_ɹ_ˈa_n_s_ɪ_s] (IPA phonetic alphabet).
A gradual loss of moisture in the tissues, siccation.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.