UMBO TYMPANI
\ˈʌmbə͡ʊ tɪmpˈɑːnɪ], \ˈʌmbəʊ tɪmpˈɑːnɪ], \ˈʌ_m_b_əʊ t_ɪ_m_p_ˈɑː_n_ɪ]\
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The deepest part of the funnel-shaped curvature or concavity of the membrana tympani which is turned toward the external auditory canal. It corresponds with the inferior extremity of the handle of the malleus, by the traction of which inward the membrane appears hollowed out. [Lat.]
By Smith Ely Jelliffe
