Medical Dictionary


noun ura·chus \-kəs\

Medical Definition of urachus

  1. :  a cord of fibrous tissue extending from the bladder to the navel and constituting the functionless remnant of a part of the duct of the allantois of the embryo

Seen and Heard

What made you want to look up urachus? Please tell us where you read or heard it (including the quote, if possible).