Definition of urethra noun from the Oxford Advanced American Dictionary

 

urethra

 noun
noun
NAmE//yʊˈriθrə//
 
(anatomy)
 
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the tube that carries liquid waste out of the body. In men and male animals sperm also flows along this tube.
NAmE//yʊˈriθrəl//
 
adjective [only before noun]
See the Oxford Advanced Learner's Dictionary entry: urethra