OSTEOPSATHYROSIS

\ˌɒstɪˌɒpsɐθɪɹˈə͡ʊsɪs], \ˌɒstɪˌɒpsɐθɪɹˈə‍ʊsɪs], \ˌɒ_s_t_ɪ__ˌɒ_p_s_ɐ_θ_ɪ_ɹ_ˈəʊ_s_ɪ_s]\
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1898 - American pocket medical dictionary
By Willam Alexander Newman Dorland
 
1916 - Appleton's medical dictionary
By Smith Ely Jelliffe