The nature of a convergent boundary depends on the type of plates that are colliding. Where a dense oceanic plate collides with a less-dense continental plate, the oceanic plate is typically thrust underneath because of the greater buoyancy of the continental lithosphere, forming a subduction zone.
Medical Definition of URINAL. 1. : a vessel so constructed that it can be used for urination by a bedridden patient. 2. : a container worn by a person with urinary incontinence.
The bladder or urinary bladder is a muscular sac that stores urine. The bladder has muscular contractions that force urine out of the body through a tube called the urethra. So, the function of the bladder is to store and get rid of urine.