Dictionary.com
Thesaurus.com

genitourinary medicine

British  

noun

  1.  GUM.  the branch of medical science concerned with the study and treatment of diseases of the genital and urinary organs, esp sexually transmitted diseases

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012