MEMBRANA VIBRANS

\mɛmbɹˈɑːnə vˈa͡ɪbɹənz], \mɛmbɹˈɑːnə vˈa‍ɪbɹənz], \m_ɛ_m_b_ɹ_ˈɑː_n_ə v_ˈaɪ_b_ɹ_ə_n_z]\
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1920 - A practical medical dictionary.
By Stedman, Thomas Lathrop
 
1898 - American pocket medical dictionary
By Willam Alexander Newman Dorland