urni mehanizem (slovensko)
samostalnik,
m. sp.
Oblike: urna mehanizma, urnega mehanizma, urne mehanizme, urni mehanizmi, urnimi mehanizmi, urnih mehanizmih, urnim mehanizmom, urnima mehanizmoma, urnih mehanizmov, urnemu mehanizmu, urnem mehanizmu