urethraPronunciation: /jʊˈriːθrə/Definition of urethra noun Anatomy & Zoology the duct by which urine is conveyed out of the body from the bladder, and which in male vertebrates also conveys semen. Derivatives urethral adjective Origin: mid 17th century: from late Latin, from Greek ourēthra, from ourein 'urinate'urethra in other Oxford dictionaries Definition of urethra in the US English dictionary
