It is a term used in Medicine and Urology especially. It is more appropriate to use the term urinal. It means related to urine or urination. Urinal.
Medical clinic in Catalonia. From the Catalan 'menge', which is an evolution of the Latin 'medicus' ('doctor') the suffix -torio 128513; . It's actually the misspelled word urinal, but it's very common because it sounds better.