URACHUS
\jˈʊ͡əɹat͡ʃəs], \jˈʊəɹatʃəs], \j_ˈʊə_ɹ_a_tʃ_ə_s]\
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The urinary canal of the fetus; postnatally it is usually a fibrous cord but occasionally persists as a vesicoumbilical fistula.
By DataStellar Co., Ltd
By William R. Warner
By Henderson, I. F.; Henderson, W. D.
By Willam Alexander Newman Dorland
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In the embryo, a tubular extension of the walls of the urinary bladder toward and in part through the umbilicus to join the allantois; in the human embryo, it does not generally pass beyond the root of the umbilical cord. In the adult, a ligamentous cord resulting from obliteration of the u. of the embryo connecting the bladder with the front wall of the abdomen. [Gr.]
By Smith Ely Jelliffe