VELAMENTOUS INSERTION
\vˌɛləmˈɛntəs ɪnsˈɜːʃən], \vˌɛləmˈɛntəs ɪnsˈɜːʃən], \v_ˌɛ_l_ə_m_ˈɛ_n_t_ə_s ɪ_n_s_ˈɜː_ʃ_ə_n]\
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That form of insertion of the umbilical cord into the placenta in which the vessels of the cord diverge from each other before entering the placenta, and the cord as a whole is inserted into the chorion, near the margin of the placenta. [Lat.]
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A condition in which the vessels uniting to form the umbilical cord run, for a considerable distance, from the surface of the placenta in the chorion before forming the cord. [Lat.]
By Smith Ely Jelliffe
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